31864820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122557}}^1$

素因数の和:122579

約数の個数: 24

約数和(自身を含む): 72064104

約数和(自身を除く): 40199284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122557, 245114, 490228, 612785, 1225570, 1593241, 2451140, 3186482, 6372964, 7966205, 15932410, 31864820]

約数ペア:

[(1, 31864820), (2, 15932410), (4, 7966205), (5, 6372964), (10, 3186482), (13, 2451140), (20, 1593241), (26, 1225570), (52, 612785), (65, 490228), (130, 245114), (260, 122557)]