16418680

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2953}}^1$

素因数の和:3103

約数の個数: 32

約数和(自身を含む): 37220400

約数和(自身を除く): 20801720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 2953, 5560, 5906, 11812, 14765, 23624, 29530, 59060, 118120, 410467, 820934, 1641868, 2052335, 3283736, 4104670, 8209340, 16418680]

約数ペア:

[(1, 16418680), (2, 8209340), (4, 4104670), (5, 3283736), (8, 2052335), (10, 1641868), (20, 820934), (40, 410467), (139, 118120), (278, 59060), (556, 29530), (695, 23624), (1112, 14765), (1390, 11812), (2780, 5906), (2953, 5560)]