68439020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263227}}^1$

素因数の和:263249

約数の個数: 24

約数和(自身を含む): 154778064

約数和(自身を除く): 86339044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263227, 526454, 1052908, 1316135, 2632270, 3421951, 5264540, 6843902, 13687804, 17109755, 34219510, 68439020]

約数ペア:

[(1, 68439020), (2, 34219510), (4, 17109755), (5, 13687804), (10, 6843902), (13, 5264540), (20, 3421951), (26, 2632270), (52, 1316135), (65, 1052908), (130, 526454), (260, 263227)]