64299020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{45281}}^1$

素因数の和:45361

約数の個数: 24

約数和(自身を含む): 136932768

約数和(自身を除く): 72633748

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 45281, 90562, 181124, 226405, 452810, 905620, 3214951, 6429902, 12859804, 16074755, 32149510, 64299020]

約数ペア:

[(1, 64299020), (2, 32149510), (4, 16074755), (5, 12859804), (10, 6429902), (20, 3214951), (71, 905620), (142, 452810), (284, 226405), (355, 181124), (710, 90562), (1420, 45281)]