31421890

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{11681}}^1$

素因数の和:11957

約数の個数: 16

約数和(自身を含む): 56774520

約数和(自身を除く): 25352630

約数列:

[1, 2, 5, 10, 269, 538, 1345, 2690, 11681, 23362, 58405, 116810, 3142189, 6284378, 15710945, 31421890]

約数ペア:

[(1, 31421890), (2, 15710945), (5, 6284378), (10, 3142189), (269, 116810), (538, 58405), (1345, 23362), (2690, 11681)]