31911380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{5521}}^1$

素因数の和:5564

約数の個数: 36

約数和(自身を含む): 71200668

約数和(自身を除く): 39289288

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5521, 5780, 11042, 22084, 27605, 55210, 93857, 110420, 187714, 375428, 469285, 938570, 1595569, 1877140, 3191138, 6382276, 7977845, 15955690, 31911380]

約数ペア:

[(1, 31911380), (2, 15955690), (4, 7977845), (5, 6382276), (10, 3191138), (17, 1877140), (20, 1595569), (34, 938570), (68, 469285), (85, 375428), (170, 187714), (289, 110420), (340, 93857), (578, 55210), (1156, 27605), (1445, 22084), (2890, 11042), (5521, 5780)]