31134920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 74908800

約数和(自身を除く): 43773880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 568, 577, 710, 760, 1154, 1349, 1420, 2308, 2698, 2840, 2885, 4616, 5396, 5770, 6745, 10792, 10963, 11540, 13490, 21926, 23080, 26980, 40967, 43852, 53960, 54815, 81934, 87704, 109630, 163868, 204835, 219260, 327736, 409670, 438520, 778373, 819340, 1556746, 1638680, 3113492, 3891865, 6226984, 7783730, 15567460, 31134920]

約数ペア:

[(1, 31134920), (2, 15567460), (4, 7783730), (5, 6226984), (8, 3891865), (10, 3113492), (19, 1638680), (20, 1556746), (38, 819340), (40, 778373), (71, 438520), (76, 409670), (95, 327736), (142, 219260), (152, 204835), (190, 163868), (284, 109630), (355, 87704), (380, 81934), (568, 54815), (577, 53960), (710, 43852), (760, 40967), (1154, 26980), (1349, 23080), (1420, 21926), (2308, 13490), (2698, 11540), (2840, 10963), (2885, 10792), (4616, 6745), (5396, 5770)]