159780460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1141289}}^1$

素因数の和:1141305

約数の個数: 24

約数和(自身を含む): 383473440

約数和(自身を除く): 223692980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1141289, 2282578, 4565156, 5706445, 7989023, 11412890, 15978046, 22825780, 31956092, 39945115, 79890230, 159780460]

約数ペア:

[(1, 159780460), (2, 79890230), (4, 39945115), (5, 31956092), (7, 22825780), (10, 15978046), (14, 11412890), (20, 7989023), (28, 5706445), (35, 4565156), (70, 2282578), (140, 1141289)]