4278640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{677}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 10088640

約数和(自身を除く): 5810000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 677, 790, 1264, 1354, 1580, 2708, 3160, 3385, 5416, 6320, 6770, 10832, 13540, 27080, 53483, 54160, 106966, 213932, 267415, 427864, 534830, 855728, 1069660, 2139320, 4278640]

約数ペア:

[(1, 4278640), (2, 2139320), (4, 1069660), (5, 855728), (8, 534830), (10, 427864), (16, 267415), (20, 213932), (40, 106966), (79, 54160), (80, 53483), (158, 27080), (316, 13540), (395, 10832), (632, 6770), (677, 6320), (790, 5416), (1264, 3385), (1354, 3160), (1580, 2708)]