640141320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 384

約数和(自身を含む): 2482341120

約数和(自身を除く): 1842199800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 31, 35, 39, 40, 42, 52, 56, 60, 61, 62, 65, 70, 78, 84, 91, 93, 104, 105, 120, 122, 124, 130, 140, 155, 156, 168, 182, 183, 186, 195, 210, 217, 244, 248, 260, 273, 280, 305, 310, 312, 364, 366, 372, 390, 403, 420, 427, 434, 455, 465, 488, 520, 546, 610, 620, 651, 728, 732, 744, 780, 793, 806, 840, 854, 868, 910, 915, 930, 961, 1085, 1092, 1209, 1220, 1240, 1281, 1302, 1365, 1464, 1560, 1586, 1612, 1708, 1736, 1820, 1830, 1860, 1891, 1922, 2015, 2135, 2170, 2184, 2379, 2418, 2440, 2562, 2604, 2730, 2821, 2883, 3172, 3224, 3255, 3416, 3640, 3660, 3720, 3782, 3844, 3965, 4030, 4270, 4340, 4758, 4805, 4836, 5124, 5208, 5460, 5551, 5642, 5673, 5766, 6045, 6344, 6405, 6510, 6727, 7320, 7564, 7688, 7930, 8060, 8463, 8540, 8680, 9455, 9516, 9610, 9672, 10248, 10920, 11102, 11284, 11346, 11532, 11895, 12090, 12493, 12810, 13020, 13237, 13454, 14105, 14415, 15128, 15860, 16120, 16653, 16926, 17080, 18910, 19032, 19220, 20181, 22204, 22568, 22692, 23064, 23790, 24180, 24583, 24986, 25620, 26040, 26474, 26908, 27755, 28210, 28365, 28830, 31720, 33306, 33635, 33852, 37479, 37820, 38440, 39711, 40362, 42315, 44408, 45384, 47580, 48360, 49166, 49972, 51240, 52948, 53816, 55510, 56420, 56730, 57660, 58621, 62465, 66185, 66612, 67270, 67704, 73749, 74958, 75640, 79422, 80724, 83265, 84630, 87451, 95160, 98332, 99944, 100905, 105896, 111020, 112840, 113460, 115320, 117242, 122915, 124930, 132370, 133224, 134540, 147498, 149916, 158844, 161448, 166530, 169260, 172081, 174902, 175863, 187395, 196664, 198555, 201810, 222040, 226920, 234484, 245830, 249860, 262353, 264740, 269080, 293105, 294996, 299832, 317688, 333060, 338520, 344162, 349804, 351726, 368745, 374790, 397110, 403620, 410347, 437255, 468968, 491660, 499720, 516243, 524706, 529480, 586210, 589992, 666120, 688324, 699608, 703452, 737490, 749580, 762073, 794220, 807240, 820694, 860405, 874510, 879315, 983320, 1032486, 1049412, 1172420, 1231041, 1311765, 1376648, 1406904, 1474980, 1499160, 1524146, 1588440, 1641388, 1720810, 1749020, 1758630, 2051735, 2064972, 2098824, 2286219, 2344840, 2462082, 2581215, 2623530, 2949960, 3048292, 3282776, 3441620, 3498040, 3517260, 3810365, 4103470, 4129944, 4572438, 4924164, 5162430, 5247060, 5334511, 6096584, 6155205, 6883240, 7034520, 7620730, 8206940, 9144876, 9848328, 10324860, 10494120, 10669022, 11431095, 12310410, 15241460, 16003533, 16413880, 18289752, 20649720, 21338044, 22862190, 24620820, 26672555, 30482920, 32007066, 42676088, 45724380, 49241640, 53345110, 64014132, 80017665, 91448760, 106690220, 128028264, 160035330, 213380440, 320070660, 640141320]

約数ペア:

[(1, 640141320), (2, 320070660), (3, 213380440), (4, 160035330), (5, 128028264), (6, 106690220), (7, 91448760), (8, 80017665), (10, 64014132), (12, 53345110), (13, 49241640), (14, 45724380), (15, 42676088), (20, 32007066), (21, 30482920), (24, 26672555), (26, 24620820), (28, 22862190), (30, 21338044), (31, 20649720), (35, 18289752), (39, 16413880), (40, 16003533), (42, 15241460), (52, 12310410), (56, 11431095), (60, 10669022), (61, 10494120), (62, 10324860), (65, 9848328), (70, 9144876), (78, 8206940), (84, 7620730), (91, 7034520), (93, 6883240), (104, 6155205), (105, 6096584), (120, 5334511), (122, 5247060), (124, 5162430), (130, 4924164), (140, 4572438), (155, 4129944), (156, 4103470), (168, 3810365), (182, 3517260), (183, 3498040), (186, 3441620), (195, 3282776), (210, 3048292), (217, 2949960), (244, 2623530), (248, 2581215), (260, 2462082), (273, 2344840), (280, 2286219), (305, 2098824), (310, 2064972), (312, 2051735), (364, 1758630), (366, 1749020), (372, 1720810), (390, 1641388), (403, 1588440), (420, 1524146), (427, 1499160), (434, 1474980), (455, 1406904), (465, 1376648), (488, 1311765), (520, 1231041), (546, 1172420), (610, 1049412), (620, 1032486), (651, 983320), (728, 879315), (732, 874510), (744, 860405), (780, 820694), (793, 807240), (806, 794220), (840, 762073), (854, 749580), (868, 737490), (910, 703452), (915, 699608), (930, 688324), (961, 666120), (1085, 589992), (1092, 586210), (1209, 529480), (1220, 524706), (1240, 516243), (1281, 499720), (1302, 491660), (1365, 468968), (1464, 437255), (1560, 410347), (1586, 403620), (1612, 397110), (1708, 374790), (1736, 368745), (1820, 351726), (1830, 349804), (1860, 344162), (1891, 338520), (1922, 333060), (2015, 317688), (2135, 299832), (2170, 294996), (2184, 293105), (2379, 269080), (2418, 264740), (2440, 262353), (2562, 249860), (2604, 245830), (2730, 234484), (2821, 226920), (2883, 222040), (3172, 201810), (3224, 198555), (3255, 196664), (3416, 187395), (3640, 175863), (3660, 174902), (3720, 172081), (3782, 169260), (3844, 166530), (3965, 161448), (4030, 158844), (4270, 149916), (4340, 147498), (4758, 134540), (4805, 133224), (4836, 132370), (5124, 124930), (5208, 122915), (5460, 117242), (5551, 115320), (5642, 113460), (5673, 112840), (5766, 111020), (6045, 105896), (6344, 100905), (6405, 99944), (6510, 98332), (6727, 95160), (7320, 87451), (7564, 84630), (7688, 83265), (7930, 80724), (8060, 79422), (8463, 75640), (8540, 74958), (8680, 73749), (9455, 67704), (9516, 67270), (9610, 66612), (9672, 66185), (10248, 62465), (10920, 58621), (11102, 57660), (11284, 56730), (11346, 56420), (11532, 55510), (11895, 53816), (12090, 52948), (12493, 51240), (12810, 49972), (13020, 49166), (13237, 48360), (13454, 47580), (14105, 45384), (14415, 44408), (15128, 42315), (15860, 40362), (16120, 39711), (16653, 38440), (16926, 37820), (17080, 37479), (18910, 33852), (19032, 33635), (19220, 33306), (20181, 31720), (22204, 28830), (22568, 28365), (22692, 28210), (23064, 27755), (23790, 26908), (24180, 26474), (24583, 26040), (24986, 25620)]