639971176

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{130927}}^1$

素因数の和:130993

約数の個数: 32

約数和(自身を含む): 1319754240

約数和(自身を除く): 679783064

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4888, 130927, 261854, 523708, 1047416, 1702051, 3404102, 6153569, 6808204, 12307138, 13616408, 24614276, 49228552, 79996397, 159992794, 319985588, 639971176]

約数ペア:

[(1, 639971176), (2, 319985588), (4, 159992794), (8, 79996397), (13, 49228552), (26, 24614276), (47, 13616408), (52, 12307138), (94, 6808204), (104, 6153569), (188, 3404102), (376, 1702051), (611, 1047416), (1222, 523708), (2444, 261854), (4888, 130927)]