878536090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1\times {\mathrm{2719}}^1$

素因数の和:3214

約数の個数: 32

約数和(自身を含む): 1605888000

約数和(自身を除く): 727351910

約数列:

[1, 2, 5, 10, 79, 158, 395, 409, 790, 818, 2045, 2719, 4090, 5438, 13595, 27190, 32311, 64622, 161555, 214801, 323110, 429602, 1074005, 1112071, 2148010, 2224142, 5560355, 11120710, 87853609, 175707218, 439268045, 878536090]

約数ペア:

[(1, 878536090), (2, 439268045), (5, 175707218), (10, 87853609), (79, 11120710), (158, 5560355), (395, 2224142), (409, 2148010), (790, 1112071), (818, 1074005), (2045, 429602), (2719, 323110), (4090, 214801), (5438, 161555), (13595, 64622), (27190, 32311)]