2154804790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{659}}^1\times {\mathrm{4139}}^1$

素因数の和:4884

約数の個数: 32

約数和(自身を含む): 3934656000

約数和(自身を除く): 1779851210

約数列:

[1, 2, 5, 10, 79, 158, 395, 659, 790, 1318, 3295, 4139, 6590, 8278, 20695, 41390, 52061, 104122, 260305, 326981, 520610, 653962, 1634905, 2727601, 3269810, 5455202, 13638005, 27276010, 215480479, 430960958, 1077402395, 2154804790]

約数ペア:

[(1, 2154804790), (2, 1077402395), (5, 430960958), (10, 215480479), (79, 27276010), (158, 13638005), (395, 5455202), (659, 3269810), (790, 2727601), (1318, 1634905), (3295, 653962), (4139, 520610), (6590, 326981), (8278, 260305), (20695, 104122), (41390, 52061)]