64503140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248089}}^1$

素因数の和:248111

約数の個数: 24

約数和(自身を含む): 145876920

約数和(自身を除く): 81373780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248089, 496178, 992356, 1240445, 2480890, 3225157, 4961780, 6450314, 12900628, 16125785, 32251570, 64503140]

約数ペア:

[(1, 64503140), (2, 32251570), (4, 16125785), (5, 12900628), (10, 6450314), (13, 4961780), (20, 3225157), (26, 2480890), (52, 1240445), (65, 992356), (130, 496178), (260, 248089)]