20225485

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2713

約数の個数: 24

約数和(自身を含む): 29154816

約数和(自身を除く): 8929331

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 2663, 7595, 13315, 18641, 82553, 93205, 130487, 412765, 577871, 652435, 2889355, 4045097, 20225485]

約数ペア:

[(1, 20225485), (5, 4045097), (7, 2889355), (31, 652435), (35, 577871), (49, 412765), (155, 130487), (217, 93205), (245, 82553), (1085, 18641), (1519, 13315), (2663, 7595)]