4120640

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:259

約数の個数: 56

約数和(自身を含む): 9997440

約数和(自身を除く): 5876800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 163, 316, 320, 326, 395, 632, 652, 790, 815, 1264, 1304, 1580, 1630, 2528, 2608, 3160, 3260, 5056, 5216, 6320, 6520, 10432, 12640, 12877, 13040, 25280, 25754, 26080, 51508, 52160, 64385, 103016, 128770, 206032, 257540, 412064, 515080, 824128, 1030160, 2060320, 4120640]

約数ペア:

[(1, 4120640), (2, 2060320), (4, 1030160), (5, 824128), (8, 515080), (10, 412064), (16, 257540), (20, 206032), (32, 128770), (40, 103016), (64, 64385), (79, 52160), (80, 51508), (158, 26080), (160, 25754), (163, 25280), (316, 13040), (320, 12877), (326, 12640), (395, 10432), (632, 6520), (652, 6320), (790, 5216), (815, 5056), (1264, 3260), (1304, 3160), (1580, 2608), (1630, 2528)]