20290150

素因数分解:

$2^1\times 5^2\times {\mathrm{257}}^1\times {\mathrm{1579}}^1$

素因数の和:1848

約数の個数: 24

約数和(自身を含む): 37910520

約数和(自身を除く): 17620370

約数列:

[1, 2, 5, 10, 25, 50, 257, 514, 1285, 1579, 2570, 3158, 6425, 7895, 12850, 15790, 39475, 78950, 405803, 811606, 2029015, 4058030, 10145075, 20290150]

約数ペア:

[(1, 20290150), (2, 10145075), (5, 4058030), (10, 2029015), (25, 811606), (50, 405803), (257, 78950), (514, 39475), (1285, 15790), (1579, 12850), (2570, 7895), (3158, 6425)]