20128831472

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9905921}}^1$

素因数の和:9906056

約数の個数: 20

約数和(自身を含む): 39306698496

約数和(自身を除く): 19177867024

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9905921, 19811842, 39623684, 79247368, 158494736, 1258051967, 2516103934, 5032207868, 10064415736, 20128831472]

約数ペア:

[(1, 20128831472), (2, 10064415736), (4, 5032207868), (8, 2516103934), (16, 1258051967), (127, 158494736), (254, 79247368), (508, 39623684), (1016, 19811842), (2032, 9905921)]