51284440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31271}}^1$

素因数の和:31323

約数の個数: 32

約数和(自身を含む): 118208160

約数和(自身を除く): 66923720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31271, 62542, 125084, 156355, 250168, 312710, 625420, 1250840, 1282111, 2564222, 5128444, 6410555, 10256888, 12821110, 25642220, 51284440]

約数ペア:

[(1, 51284440), (2, 25642220), (4, 12821110), (5, 10256888), (8, 6410555), (10, 5128444), (20, 2564222), (40, 1282111), (41, 1250840), (82, 625420), (164, 312710), (205, 250168), (328, 156355), (410, 125084), (820, 62542), (1640, 31271)]