867989680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{264631}}^1$

素因数の和:264685

約数の個数: 40

約数和(自身を含む): 2067305184

約数和(自身を除く): 1199315504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 264631, 529262, 1058524, 1323155, 2117048, 2646310, 4234096, 5292620, 10585240, 10849871, 21170480, 21699742, 43399484, 54249355, 86798968, 108498710, 173597936, 216997420, 433994840, 867989680]

約数ペア:

[(1, 867989680), (2, 433994840), (4, 216997420), (5, 173597936), (8, 108498710), (10, 86798968), (16, 54249355), (20, 43399484), (40, 21699742), (41, 21170480), (80, 10849871), (82, 10585240), (164, 5292620), (205, 4234096), (328, 2646310), (410, 2117048), (656, 1323155), (820, 1058524), (1640, 529262), (3280, 264631)]