15291880

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{887}}^1$

素因数の和:1329

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 19233560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 887, 1724, 1774, 2155, 3448, 3548, 4310, 4435, 7096, 8620, 8870, 17240, 17740, 35480, 382297, 764594, 1529188, 1911485, 3058376, 3822970, 7645940, 15291880]

約数ペア:

[(1, 15291880), (2, 7645940), (4, 3822970), (5, 3058376), (8, 1911485), (10, 1529188), (20, 764594), (40, 382297), (431, 35480), (862, 17740), (887, 17240), (1724, 8870), (1774, 8620), (2155, 7096), (3448, 4435), (3548, 4310)]