28780560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:653

約数の個数: 120

約数和(自身を含む): 98190144

約数和(自身を除く): 69409584

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 426, 563, 568, 639, 710, 720, 852, 1065, 1126, 1136, 1278, 1420, 1689, 1704, 2130, 2252, 2556, 2815, 2840, 3195, 3378, 3408, 4260, 4504, 5067, 5112, 5630, 5680, 6390, 6756, 8445, 8520, 9008, 10134, 10224, 11260, 12780, 13512, 16890, 17040, 20268, 22520, 25335, 25560, 27024, 33780, 39973, 40536, 45040, 50670, 51120, 67560, 79946, 81072, 101340, 119919, 135120, 159892, 199865, 202680, 239838, 319784, 359757, 399730, 405360, 479676, 599595, 639568, 719514, 799460, 959352, 1199190, 1439028, 1598920, 1798785, 1918704, 2398380, 2878056, 3197840, 3597570, 4796760, 5756112, 7195140, 9593520, 14390280, 28780560]

約数ペア:

[(1, 28780560), (2, 14390280), (3, 9593520), (4, 7195140), (5, 5756112), (6, 4796760), (8, 3597570), (9, 3197840), (10, 2878056), (12, 2398380), (15, 1918704), (16, 1798785), (18, 1598920), (20, 1439028), (24, 1199190), (30, 959352), (36, 799460), (40, 719514), (45, 639568), (48, 599595), (60, 479676), (71, 405360), (72, 399730), (80, 359757), (90, 319784), (120, 239838), (142, 202680), (144, 199865), (180, 159892), (213, 135120), (240, 119919), (284, 101340), (355, 81072), (360, 79946), (426, 67560), (563, 51120), (568, 50670), (639, 45040), (710, 40536), (720, 39973), (852, 33780), (1065, 27024), (1126, 25560), (1136, 25335), (1278, 22520), (1420, 20268), (1689, 17040), (1704, 16890), (2130, 13512), (2252, 12780), (2556, 11260), (2815, 10224), (2840, 10134), (3195, 9008), (3378, 8520), (3408, 8445), (4260, 6756), (4504, 6390), (5067, 5680), (5112, 5630)]