25109740

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2557}}^1$

素因数の和:3057

約数の個数: 24

約数和(自身を含む): 52858512

約数和(自身を除く): 27748772

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2557, 4910, 5114, 9820, 10228, 12785, 25570, 51140, 1255487, 2510974, 5021948, 6277435, 12554870, 25109740]

約数ペア:

[(1, 25109740), (2, 12554870), (4, 6277435), (5, 5021948), (10, 2510974), (20, 1255487), (491, 51140), (982, 25570), (1964, 12785), (2455, 10228), (2557, 9820), (4910, 5114)]