18693740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71899}}^1$

素因数の和:71921

約数の個数: 24

約数和(自身を含む): 42277200

約数和(自身を除く): 23583460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71899, 143798, 287596, 359495, 718990, 934687, 1437980, 1869374, 3738748, 4673435, 9346870, 18693740]

約数ペア:

[(1, 18693740), (2, 9346870), (4, 4673435), (5, 3738748), (10, 1869374), (13, 1437980), (20, 934687), (26, 718990), (52, 359495), (65, 287596), (130, 143798), (260, 71899)]