28757040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{709}}^1$

素因数の和:751

約数の個数: 120

約数和(自身を含む): 96667920

約数和(自身を除く): 67910880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 507, 520, 624, 676, 709, 780, 845, 1014, 1040, 1352, 1418, 1560, 1690, 2028, 2127, 2535, 2704, 2836, 3120, 3380, 3545, 4056, 4254, 5070, 5672, 6760, 7090, 8112, 8508, 9217, 10140, 10635, 11344, 13520, 14180, 17016, 18434, 20280, 21270, 27651, 28360, 34032, 36868, 40560, 42540, 46085, 55302, 56720, 73736, 85080, 92170, 110604, 119821, 138255, 147472, 170160, 184340, 221208, 239642, 276510, 359463, 368680, 442416, 479284, 553020, 599105, 718926, 737360, 958568, 1106040, 1198210, 1437852, 1797315, 1917136, 2212080, 2396420, 2875704, 3594630, 4792840, 5751408, 7189260, 9585680, 14378520, 28757040]

約数ペア:

[(1, 28757040), (2, 14378520), (3, 9585680), (4, 7189260), (5, 5751408), (6, 4792840), (8, 3594630), (10, 2875704), (12, 2396420), (13, 2212080), (15, 1917136), (16, 1797315), (20, 1437852), (24, 1198210), (26, 1106040), (30, 958568), (39, 737360), (40, 718926), (48, 599105), (52, 553020), (60, 479284), (65, 442416), (78, 368680), (80, 359463), (104, 276510), (120, 239642), (130, 221208), (156, 184340), (169, 170160), (195, 147472), (208, 138255), (240, 119821), (260, 110604), (312, 92170), (338, 85080), (390, 73736), (507, 56720), (520, 55302), (624, 46085), (676, 42540), (709, 40560), (780, 36868), (845, 34032), (1014, 28360), (1040, 27651), (1352, 21270), (1418, 20280), (1560, 18434), (1690, 17016), (2028, 14180), (2127, 13520), (2535, 11344), (2704, 10635), (2836, 10140), (3120, 9217), (3380, 8508), (3545, 8112), (4056, 7090), (4254, 6760), (5070, 5672)]