15620

素因数分解:

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

素因数の和:91

約数の個数: 24

約数和(自身を含む): 36288

約数和(自身を除く): 20668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620]

約数ペア:

[(1, 15620), (2, 7810), (4, 3905), (5, 3124), (10, 1562), (11, 1420), (20, 781), (22, 710), (44, 355), (55, 284), (71, 220), (110, 142)]