31877620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 69366528

約数和(自身を除く): 37488908

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 101, 172, 202, 215, 367, 404, 430, 505, 734, 860, 1010, 1468, 1835, 2020, 3670, 4343, 7340, 8686, 15781, 17372, 21715, 31562, 37067, 43430, 63124, 74134, 78905, 86860, 148268, 157810, 185335, 315620, 370670, 741340, 1593881, 3187762, 6375524, 7969405, 15938810, 31877620]

約数ペア:

[(1, 31877620), (2, 15938810), (4, 7969405), (5, 6375524), (10, 3187762), (20, 1593881), (43, 741340), (86, 370670), (101, 315620), (172, 185335), (202, 157810), (215, 148268), (367, 86860), (404, 78905), (430, 74134), (505, 63124), (734, 43430), (860, 37067), (1010, 31562), (1468, 21715), (1835, 17372), (2020, 15781), (3670, 8686), (4343, 7340)]