25007620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1601}}^1$

素因数の和:1692

約数の個数: 48

約数和(自身を含む): 58133376

約数和(自身を除く): 33125756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1601, 3124, 3202, 3905, 6404, 7810, 8005, 15620, 16010, 17611, 32020, 35222, 70444, 88055, 113671, 176110, 227342, 352220, 454684, 568355, 1136710, 1250381, 2273420, 2500762, 5001524, 6251905, 12503810, 25007620]

約数ペア:

[(1, 25007620), (2, 12503810), (4, 6251905), (5, 5001524), (10, 2500762), (11, 2273420), (20, 1250381), (22, 1136710), (44, 568355), (55, 454684), (71, 352220), (110, 227342), (142, 176110), (220, 113671), (284, 88055), (355, 70444), (710, 35222), (781, 32020), (1420, 17611), (1562, 16010), (1601, 15620), (3124, 8005), (3202, 7810), (3905, 6404)]