18641740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71699}}^1$

素因数の和:71721

約数の個数: 24

約数和(自身を含む): 42159600

約数和(自身を除く): 23517860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71699, 143398, 286796, 358495, 716990, 932087, 1433980, 1864174, 3728348, 4660435, 9320870, 18641740]

約数ペア:

[(1, 18641740), (2, 9320870), (4, 4660435), (5, 3728348), (10, 1864174), (13, 1433980), (20, 932087), (26, 716990), (52, 358495), (65, 286796), (130, 143398), (260, 71699)]