858491420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{543349}}^1$

素因数の和:543437

約数の個数: 24

約数和(自身を含む): 1825656000

約数和(自身を除く): 967164580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 543349, 1086698, 2173396, 2716745, 5433490, 10866980, 42924571, 85849142, 171698284, 214622855, 429245710, 858491420]

約数ペア:

[(1, 858491420), (2, 429245710), (4, 214622855), (5, 171698284), (10, 85849142), (20, 42924571), (79, 10866980), (158, 5433490), (316, 2716745), (395, 2173396), (790, 1086698), (1580, 543349)]