15571920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 320

約数和(自身を含む): 63995904

約数和(自身を除く): 48423984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 23, 24, 26, 28, 30, 31, 35, 39, 40, 42, 46, 48, 52, 56, 60, 62, 65, 69, 70, 78, 80, 84, 91, 92, 93, 104, 105, 112, 115, 120, 124, 130, 138, 140, 155, 156, 161, 168, 182, 184, 186, 195, 208, 210, 217, 230, 240, 248, 260, 273, 276, 280, 299, 310, 312, 322, 336, 345, 364, 368, 372, 390, 403, 420, 434, 455, 460, 465, 483, 496, 520, 546, 552, 560, 598, 620, 624, 644, 651, 690, 713, 728, 744, 780, 805, 806, 840, 868, 897, 910, 920, 930, 966, 1040, 1085, 1092, 1104, 1196, 1209, 1240, 1288, 1302, 1365, 1380, 1426, 1456, 1488, 1495, 1560, 1610, 1612, 1680, 1736, 1794, 1820, 1840, 1860, 1932, 2015, 2093, 2139, 2170, 2184, 2392, 2415, 2418, 2480, 2576, 2604, 2730, 2760, 2821, 2852, 2990, 3120, 3220, 3224, 3255, 3472, 3565, 3588, 3640, 3720, 3864, 4030, 4186, 4278, 4340, 4368, 4485, 4784, 4830, 4836, 4991, 5208, 5460, 5520, 5642, 5704, 5980, 6045, 6279, 6440, 6448, 6510, 7130, 7176, 7280, 7440, 7728, 8060, 8372, 8463, 8556, 8680, 8970, 9269, 9660, 9672, 9982, 10416, 10465, 10695, 10920, 11284, 11408, 11960, 12090, 12558, 12880, 13020, 14105, 14260, 14352, 14973, 16120, 16744, 16926, 17112, 17360, 17940, 18538, 19320, 19344, 19964, 20930, 21390, 21840, 22568, 23920, 24180, 24955, 25116, 26040, 27807, 28210, 28520, 29946, 31395, 32240, 33488, 33852, 34224, 35880, 37076, 38640, 39928, 41860, 42315, 42780, 45136, 46345, 48360, 49910, 50232, 52080, 55614, 56420, 57040, 59892, 62790, 64883, 67704, 71760, 74152, 74865, 79856, 83720, 84630, 85560, 92690, 96720, 99820, 100464, 111228, 112840, 119784, 125580, 129766, 135408, 139035, 148304, 149730, 167440, 169260, 171120, 185380, 194649, 199640, 222456, 225680, 239568, 251160, 259532, 278070, 299460, 324415, 338520, 370760, 389298, 399280, 444912, 502320, 519064, 556140, 598920, 648830, 677040, 741520, 778596, 973245, 1038128, 1112280, 1197840, 1297660, 1557192, 1946490, 2224560, 2595320, 3114384, 3892980, 5190640, 7785960, 15571920]

約数ペア:

[(1, 15571920), (2, 7785960), (3, 5190640), (4, 3892980), (5, 3114384), (6, 2595320), (7, 2224560), (8, 1946490), (10, 1557192), (12, 1297660), (13, 1197840), (14, 1112280), (15, 1038128), (16, 973245), (20, 778596), (21, 741520), (23, 677040), (24, 648830), (26, 598920), (28, 556140), (30, 519064), (31, 502320), (35, 444912), (39, 399280), (40, 389298), (42, 370760), (46, 338520), (48, 324415), (52, 299460), (56, 278070), (60, 259532), (62, 251160), (65, 239568), (69, 225680), (70, 222456), (78, 199640), (80, 194649), (84, 185380), (91, 171120), (92, 169260), (93, 167440), (104, 149730), (105, 148304), (112, 139035), (115, 135408), (120, 129766), (124, 125580), (130, 119784), (138, 112840), (140, 111228), (155, 100464), (156, 99820), (161, 96720), (168, 92690), (182, 85560), (184, 84630), (186, 83720), (195, 79856), (208, 74865), (210, 74152), (217, 71760), (230, 67704), (240, 64883), (248, 62790), (260, 59892), (273, 57040), (276, 56420), (280, 55614), (299, 52080), (310, 50232), (312, 49910), (322, 48360), (336, 46345), (345, 45136), (364, 42780), (368, 42315), (372, 41860), (390, 39928), (403, 38640), (420, 37076), (434, 35880), (455, 34224), (460, 33852), (465, 33488), (483, 32240), (496, 31395), (520, 29946), (546, 28520), (552, 28210), (560, 27807), (598, 26040), (620, 25116), (624, 24955), (644, 24180), (651, 23920), (690, 22568), (713, 21840), (728, 21390), (744, 20930), (780, 19964), (805, 19344), (806, 19320), (840, 18538), (868, 17940), (897, 17360), (910, 17112), (920, 16926), (930, 16744), (966, 16120), (1040, 14973), (1085, 14352), (1092, 14260), (1104, 14105), (1196, 13020), (1209, 12880), (1240, 12558), (1288, 12090), (1302, 11960), (1365, 11408), (1380, 11284), (1426, 10920), (1456, 10695), (1488, 10465), (1495, 10416), (1560, 9982), (1610, 9672), (1612, 9660), (1680, 9269), (1736, 8970), (1794, 8680), (1820, 8556), (1840, 8463), (1860, 8372), (1932, 8060), (2015, 7728), (2093, 7440), (2139, 7280), (2170, 7176), (2184, 7130), (2392, 6510), (2415, 6448), (2418, 6440), (2480, 6279), (2576, 6045), (2604, 5980), (2730, 5704), (2760, 5642), (2821, 5520), (2852, 5460), (2990, 5208), (3120, 4991), (3220, 4836), (3224, 4830), (3255, 4784), (3472, 4485), (3565, 4368), (3588, 4340), (3640, 4278), (3720, 4186), (3864, 4030)]