1577620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 3701376

約数和(自身を除く): 2123756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 101, 110, 142, 202, 220, 284, 355, 404, 505, 710, 781, 1010, 1111, 1420, 1562, 2020, 2222, 3124, 3905, 4444, 5555, 7171, 7810, 11110, 14342, 15620, 22220, 28684, 35855, 71710, 78881, 143420, 157762, 315524, 394405, 788810, 1577620]

約数ペア:

[(1, 1577620), (2, 788810), (4, 394405), (5, 315524), (10, 157762), (11, 143420), (20, 78881), (22, 71710), (44, 35855), (55, 28684), (71, 22220), (101, 15620), (110, 14342), (142, 11110), (202, 7810), (220, 7171), (284, 5555), (355, 4444), (404, 3905), (505, 3124), (710, 2222), (781, 2020), (1010, 1562), (1111, 1420)]