15109720

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{757}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 34110000

約数和(自身を除く): 19000280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 757, 998, 1514, 1996, 2495, 3028, 3785, 3992, 4990, 6056, 7570, 9980, 15140, 19960, 30280, 377743, 755486, 1510972, 1888715, 3021944, 3777430, 7554860, 15109720]

約数ペア:

[(1, 15109720), (2, 7554860), (4, 3777430), (5, 3021944), (8, 1888715), (10, 1510972), (20, 755486), (40, 377743), (499, 30280), (757, 19960), (998, 15140), (1514, 9980), (1996, 7570), (2495, 6056), (3028, 4990), (3785, 3992)]