31210790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{587}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 60752160

約数和(自身を除く): 29541370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 587, 818, 1174, 2045, 2935, 4090, 5317, 5870, 7631, 10634, 15262, 26585, 38155, 53170, 76310, 240083, 480166, 1200415, 2400830, 3121079, 6242158, 15605395, 31210790]

約数ペア:

[(1, 31210790), (2, 15605395), (5, 6242158), (10, 3121079), (13, 2400830), (26, 1200415), (65, 480166), (130, 240083), (409, 76310), (587, 53170), (818, 38155), (1174, 26585), (2045, 15262), (2935, 10634), (4090, 7631), (5317, 5870)]