20644100

素因数分解:

$2^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{3499}}^1$

素因数の和:3572

約数の個数: 36

約数和(自身を含む): 45570000

約数和(自身を除く): 24925900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 100, 118, 236, 295, 590, 1180, 1475, 2950, 3499, 5900, 6998, 13996, 17495, 34990, 69980, 87475, 174950, 206441, 349900, 412882, 825764, 1032205, 2064410, 4128820, 5161025, 10322050, 20644100]

約数ペア:

[(1, 20644100), (2, 10322050), (4, 5161025), (5, 4128820), (10, 2064410), (20, 1032205), (25, 825764), (50, 412882), (59, 349900), (100, 206441), (118, 174950), (236, 87475), (295, 69980), (590, 34990), (1180, 17495), (1475, 13996), (2950, 6998), (3499, 5900)]