20170981640

素因数分解:

$2^3\times 5^1\times {\mathrm{504274541}}^1$

素因数の和:504274552

約数の個数: 16

約数和(自身を含む): 45384708780

約数和(自身を除く): 25213727140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504274541, 1008549082, 2017098164, 2521372705, 4034196328, 5042745410, 10085490820, 20170981640]

約数ペア:

[(1, 20170981640), (2, 10085490820), (4, 5042745410), (5, 4034196328), (8, 2521372705), (10, 2017098164), (20, 1008549082), (40, 504274541)]