254679880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 256

約数和(自身を含む): 759951360

約数和(自身を除く): 505271480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 37, 40, 52, 56, 61, 62, 65, 70, 74, 91, 104, 122, 124, 130, 140, 148, 155, 182, 185, 217, 244, 248, 259, 260, 280, 296, 305, 310, 364, 370, 403, 427, 434, 455, 481, 488, 518, 520, 610, 620, 728, 740, 793, 806, 854, 868, 910, 962, 1036, 1085, 1147, 1220, 1240, 1295, 1480, 1586, 1612, 1708, 1736, 1820, 1891, 1924, 2015, 2072, 2135, 2170, 2257, 2294, 2405, 2440, 2590, 2821, 3172, 3224, 3367, 3416, 3640, 3782, 3848, 3965, 4030, 4270, 4340, 4514, 4588, 4810, 5180, 5551, 5642, 5735, 6344, 6734, 7564, 7930, 8029, 8060, 8540, 8680, 9028, 9176, 9455, 9620, 10360, 11102, 11284, 11285, 11470, 13237, 13468, 14105, 14911, 15128, 15799, 15860, 16058, 16120, 16835, 17080, 18056, 18910, 19240, 22204, 22568, 22570, 22940, 24583, 26474, 26936, 27755, 28210, 29341, 29822, 31598, 31720, 32116, 33670, 37820, 40145, 44408, 45140, 45880, 49166, 52948, 55510, 56420, 58682, 59644, 63196, 64232, 66185, 67340, 69967, 74555, 75640, 78995, 80290, 90280, 98332, 104377, 105896, 111020, 112840, 117364, 119288, 122915, 126392, 132370, 134680, 139934, 146705, 149110, 157990, 160580, 172081, 196664, 205387, 208754, 222040, 234728, 245830, 264740, 279868, 293410, 298220, 315980, 321160, 344162, 349835, 410774, 417508, 489769, 491660, 521885, 529480, 559736, 586820, 596440, 631960, 688324, 699670, 821548, 835016, 860405, 909571, 979538, 983320, 1026935, 1043770, 1173640, 1376648, 1399340, 1643096, 1720810, 1819142, 1959076, 2053870, 2087540, 2448845, 2798680, 3441620, 3638284, 3918152, 4107740, 4175080, 4547855, 4897690, 6366997, 6883240, 7276568, 8215480, 9095710, 9795380, 12733994, 18191420, 19590760, 25467988, 31834985, 36382840, 50935976, 63669970, 127339940, 254679880]

約数ペア:

[(1, 254679880), (2, 127339940), (4, 63669970), (5, 50935976), (7, 36382840), (8, 31834985), (10, 25467988), (13, 19590760), (14, 18191420), (20, 12733994), (26, 9795380), (28, 9095710), (31, 8215480), (35, 7276568), (37, 6883240), (40, 6366997), (52, 4897690), (56, 4547855), (61, 4175080), (62, 4107740), (65, 3918152), (70, 3638284), (74, 3441620), (91, 2798680), (104, 2448845), (122, 2087540), (124, 2053870), (130, 1959076), (140, 1819142), (148, 1720810), (155, 1643096), (182, 1399340), (185, 1376648), (217, 1173640), (244, 1043770), (248, 1026935), (259, 983320), (260, 979538), (280, 909571), (296, 860405), (305, 835016), (310, 821548), (364, 699670), (370, 688324), (403, 631960), (427, 596440), (434, 586820), (455, 559736), (481, 529480), (488, 521885), (518, 491660), (520, 489769), (610, 417508), (620, 410774), (728, 349835), (740, 344162), (793, 321160), (806, 315980), (854, 298220), (868, 293410), (910, 279868), (962, 264740), (1036, 245830), (1085, 234728), (1147, 222040), (1220, 208754), (1240, 205387), (1295, 196664), (1480, 172081), (1586, 160580), (1612, 157990), (1708, 149110), (1736, 146705), (1820, 139934), (1891, 134680), (1924, 132370), (2015, 126392), (2072, 122915), (2135, 119288), (2170, 117364), (2257, 112840), (2294, 111020), (2405, 105896), (2440, 104377), (2590, 98332), (2821, 90280), (3172, 80290), (3224, 78995), (3367, 75640), (3416, 74555), (3640, 69967), (3782, 67340), (3848, 66185), (3965, 64232), (4030, 63196), (4270, 59644), (4340, 58682), (4514, 56420), (4588, 55510), (4810, 52948), (5180, 49166), (5551, 45880), (5642, 45140), (5735, 44408), (6344, 40145), (6734, 37820), (7564, 33670), (7930, 32116), (8029, 31720), (8060, 31598), (8540, 29822), (8680, 29341), (9028, 28210), (9176, 27755), (9455, 26936), (9620, 26474), (10360, 24583), (11102, 22940), (11284, 22570), (11285, 22568), (11470, 22204), (13237, 19240), (13468, 18910), (14105, 18056), (14911, 17080), (15128, 16835), (15799, 16120), (15860, 16058)]