13638820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52457}}^1$

素因数の和:52479

約数の個数: 24

約数和(自身を含む): 30845304

約数和(自身を除く): 17206484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 52457, 104914, 209828, 262285, 524570, 681941, 1049140, 1363882, 2727764, 3409705, 6819410, 13638820]

約数ペア:

[(1, 13638820), (2, 6819410), (4, 3409705), (5, 2727764), (10, 1363882), (13, 1049140), (20, 681941), (26, 524570), (52, 262285), (65, 209828), (130, 104914), (260, 52457)]