64645945

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20297}}^1$

素因数の和:20329

約数の個数: 24

約数和(自身を含む): 97186824

約数和(自身を除く): 32540879

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 20297, 101485, 142079, 263861, 710395, 994553, 1319305, 1847027, 4972765, 9235135, 12929189, 64645945]

約数ペア:

[(1, 64645945), (5, 12929189), (7, 9235135), (13, 4972765), (35, 1847027), (49, 1319305), (65, 994553), (91, 710395), (245, 263861), (455, 142079), (637, 101485), (3185, 20297)]