25487280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:428

約数の個数: 240

約数和(自身を含む): 105618240

約数和(自身を除く): 80130960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 389, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 778, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1167, 1170, 1260, 1365, 1456, 1556, 1560, 1638, 1680, 1820, 1872, 1945, 2184, 2334, 2340, 2520, 2723, 2730, 3112, 3120, 3276, 3501, 3640, 3890, 4095, 4368, 4668, 4680, 5040, 5057, 5446, 5460, 5835, 6224, 6552, 7002, 7280, 7780, 8169, 8190, 9336, 9360, 10114, 10892, 10920, 11670, 13104, 13615, 14004, 15171, 15560, 16338, 16380, 17505, 18672, 20228, 21784, 21840, 23340, 24507, 25285, 27230, 28008, 30342, 31120, 32676, 32760, 35010, 35399, 40456, 40845, 43568, 45513, 46680, 49014, 50570, 54460, 56016, 60684, 65352, 65520, 70020, 70798, 75855, 80912, 81690, 91026, 93360, 98028, 101140, 106197, 108920, 121368, 122535, 130704, 140040, 141596, 151710, 163380, 176995, 182052, 196056, 202280, 212394, 217840, 227565, 242736, 245070, 280080, 283192, 303420, 318591, 326760, 353990, 364104, 392112, 404560, 424788, 455130, 490140, 530985, 566384, 606840, 637182, 653520, 707980, 728208, 849576, 910260, 980280, 1061970, 1213680, 1274364, 1415960, 1592955, 1699152, 1820520, 1960560, 2123940, 2548728, 2831920, 3185910, 3641040, 4247880, 5097456, 6371820, 8495760, 12743640, 25487280]

約数ペア:

[(1, 25487280), (2, 12743640), (3, 8495760), (4, 6371820), (5, 5097456), (6, 4247880), (7, 3641040), (8, 3185910), (9, 2831920), (10, 2548728), (12, 2123940), (13, 1960560), (14, 1820520), (15, 1699152), (16, 1592955), (18, 1415960), (20, 1274364), (21, 1213680), (24, 1061970), (26, 980280), (28, 910260), (30, 849576), (35, 728208), (36, 707980), (39, 653520), (40, 637182), (42, 606840), (45, 566384), (48, 530985), (52, 490140), (56, 455130), (60, 424788), (63, 404560), (65, 392112), (70, 364104), (72, 353990), (78, 326760), (80, 318591), (84, 303420), (90, 283192), (91, 280080), (104, 245070), (105, 242736), (112, 227565), (117, 217840), (120, 212394), (126, 202280), (130, 196056), (140, 182052), (144, 176995), (156, 163380), (168, 151710), (180, 141596), (182, 140040), (195, 130704), (208, 122535), (210, 121368), (234, 108920), (240, 106197), (252, 101140), (260, 98028), (273, 93360), (280, 91026), (312, 81690), (315, 80912), (336, 75855), (360, 70798), (364, 70020), (389, 65520), (390, 65352), (420, 60684), (455, 56016), (468, 54460), (504, 50570), (520, 49014), (546, 46680), (560, 45513), (585, 43568), (624, 40845), (630, 40456), (720, 35399), (728, 35010), (778, 32760), (780, 32676), (819, 31120), (840, 30342), (910, 28008), (936, 27230), (1008, 25285), (1040, 24507), (1092, 23340), (1167, 21840), (1170, 21784), (1260, 20228), (1365, 18672), (1456, 17505), (1556, 16380), (1560, 16338), (1638, 15560), (1680, 15171), (1820, 14004), (1872, 13615), (1945, 13104), (2184, 11670), (2334, 10920), (2340, 10892), (2520, 10114), (2723, 9360), (2730, 9336), (3112, 8190), (3120, 8169), (3276, 7780), (3501, 7280), (3640, 7002), (3890, 6552), (4095, 6224), (4368, 5835), (4668, 5460), (4680, 5446), (5040, 5057)]