199904560

素因数分解:

$2^4\times 5^1\times {\mathrm{677}}^1\times {\mathrm{3691}}^1$

素因数の和:4381

約数の個数: 40

約数和(自身を含む): 465590736

約数和(自身を除く): 265686176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 677, 1354, 2708, 3385, 3691, 5416, 6770, 7382, 10832, 13540, 14764, 18455, 27080, 29528, 36910, 54160, 59056, 73820, 147640, 295280, 2498807, 4997614, 9995228, 12494035, 19990456, 24988070, 39980912, 49976140, 99952280, 199904560]

約数ペア:

[(1, 199904560), (2, 99952280), (4, 49976140), (5, 39980912), (8, 24988070), (10, 19990456), (16, 12494035), (20, 9995228), (40, 4997614), (80, 2498807), (677, 295280), (1354, 147640), (2708, 73820), (3385, 59056), (3691, 54160), (5416, 36910), (6770, 29528), (7382, 27080), (10832, 18455), (13540, 14764)]