81495830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{16943}}^1$

素因数の和:17000

約数の個数: 32

約数和(自身を含む): 162255744

約数和(自身を除く): 80759914

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 16943, 33886, 84715, 169430, 220259, 440518, 626891, 1101295, 1253782, 2202590, 3134455, 6268910, 8149583, 16299166, 40747915, 81495830]

約数ペア:

[(1, 81495830), (2, 40747915), (5, 16299166), (10, 8149583), (13, 6268910), (26, 3134455), (37, 2202590), (65, 1253782), (74, 1101295), (130, 626891), (185, 440518), (370, 220259), (481, 169430), (962, 84715), (2405, 33886), (4810, 16943)]