81521570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{627089}}^1$

素因数の和:627109

約数の個数: 16

約数和(自身を含む): 158026680

約数和(自身を除く): 76505110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 627089, 1254178, 3135445, 6270890, 8152157, 16304314, 40760785, 81521570]

約数ペア:

[(1, 81521570), (2, 40760785), (5, 16304314), (10, 8152157), (13, 6270890), (26, 3135445), (65, 1254178), (130, 627089)]