19717150

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2837}}^1$

素因数の和:2988

約数の個数: 24

約数和(自身を含む): 36950760

約数和(自身を除く): 17233610

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 2837, 3475, 5674, 6950, 14185, 28370, 70925, 141850, 394343, 788686, 1971715, 3943430, 9858575, 19717150]

約数ペア:

[(1, 19717150), (2, 9858575), (5, 3943430), (10, 1971715), (25, 788686), (50, 394343), (139, 141850), (278, 70925), (695, 28370), (1390, 14185), (2837, 6950), (3475, 5674)]