20291110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3257}}^1$

素因数の和:3360

約数の個数: 32

約数和(自身を含む): 42223680

約数和(自身を除く): 21932570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3257, 6230, 6514, 16285, 22799, 32570, 45598, 113995, 227990, 289873, 579746, 1449365, 2029111, 2898730, 4058222, 10145555, 20291110]

約数ペア:

[(1, 20291110), (2, 10145555), (5, 4058222), (7, 2898730), (10, 2029111), (14, 1449365), (35, 579746), (70, 289873), (89, 227990), (178, 113995), (445, 45598), (623, 32570), (890, 22799), (1246, 16285), (3115, 6514), (3257, 6230)]