81786670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{40289}}^1$

素因数の和:40332

約数の個数: 32

約数和(自身を含む): 174052800

約数和(自身を除く): 92266130

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 40289, 80578, 201445, 282023, 402890, 564046, 1168381, 1410115, 2336762, 2820230, 5841905, 8178667, 11683810, 16357334, 40893335, 81786670]

約数ペア:

[(1, 81786670), (2, 40893335), (5, 16357334), (7, 11683810), (10, 8178667), (14, 5841905), (29, 2820230), (35, 2336762), (58, 1410115), (70, 1168381), (145, 564046), (203, 402890), (290, 282023), (406, 201445), (1015, 80578), (2030, 40289)]