31111380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{563}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 94846752

約数和(自身を除く): 63735372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 563, 614, 921, 1126, 1228, 1535, 1689, 1842, 2252, 2763, 2815, 3070, 3378, 3684, 4605, 5067, 5526, 5630, 6140, 6756, 8445, 9210, 10134, 11052, 11260, 13815, 16890, 18420, 20268, 25335, 27630, 33780, 50670, 55260, 101340, 172841, 345682, 518523, 691364, 864205, 1037046, 1555569, 1728410, 2074092, 2592615, 3111138, 3456820, 5185230, 6222276, 7777845, 10370460, 15555690, 31111380]

約数ペア:

[(1, 31111380), (2, 15555690), (3, 10370460), (4, 7777845), (5, 6222276), (6, 5185230), (9, 3456820), (10, 3111138), (12, 2592615), (15, 2074092), (18, 1728410), (20, 1555569), (30, 1037046), (36, 864205), (45, 691364), (60, 518523), (90, 345682), (180, 172841), (307, 101340), (563, 55260), (614, 50670), (921, 33780), (1126, 27630), (1228, 25335), (1535, 20268), (1689, 18420), (1842, 16890), (2252, 13815), (2763, 11260), (2815, 11052), (3070, 10134), (3378, 9210), (3684, 8445), (4605, 6756), (5067, 6140), (5526, 5630)]