15517960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2791}}^1$

素因数の和:2941

約数の個数: 32

約数和(自身を含む): 35179200

約数和(自身を除く): 19661240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 2791, 5560, 5582, 11164, 13955, 22328, 27910, 55820, 111640, 387949, 775898, 1551796, 1939745, 3103592, 3879490, 7758980, 15517960]

約数ペア:

[(1, 15517960), (2, 7758980), (4, 3879490), (5, 3103592), (8, 1939745), (10, 1551796), (20, 775898), (40, 387949), (139, 111640), (278, 55820), (556, 27910), (695, 22328), (1112, 13955), (1390, 11164), (2780, 5582), (2791, 5560)]