15985120

素因数分解:

$2^5\times 5^1\times {\mathrm{99907}}^1$

素因数の和:99922

約数の個数: 24

約数和(自身を含む): 37765224

約数和(自身を除く): 21780104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 99907, 199814, 399628, 499535, 799256, 999070, 1598512, 1998140, 3197024, 3996280, 7992560, 15985120]

約数ペア:

[(1, 15985120), (2, 7992560), (4, 3996280), (5, 3197024), (8, 1998140), (10, 1598512), (16, 999070), (20, 799256), (32, 499535), (40, 399628), (80, 199814), (160, 99907)]