20545010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7109}}^1$

素因数の和:7150

約数の個数: 24

約数和(自身を含む): 39289860

約数和(自身を除く): 18744850

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7109, 14218, 35545, 71090, 120853, 241706, 604265, 1208530, 2054501, 4109002, 10272505, 20545010]

約数ペア:

[(1, 20545010), (2, 10272505), (5, 4109002), (10, 2054501), (17, 1208530), (34, 604265), (85, 241706), (170, 120853), (289, 71090), (578, 35545), (1445, 14218), (2890, 7109)]