229657840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 552616416

約数和(自身を除く): 322958576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 101, 172, 202, 215, 344, 404, 430, 505, 661, 688, 808, 860, 1010, 1322, 1616, 1720, 2020, 2644, 3305, 3440, 4040, 4343, 5288, 6610, 8080, 8686, 10576, 13220, 17372, 21715, 26440, 28423, 34744, 43430, 52880, 56846, 66761, 69488, 86860, 113692, 133522, 142115, 173720, 227384, 267044, 284230, 333805, 347440, 454768, 534088, 568460, 667610, 1068176, 1136920, 1335220, 2273840, 2670440, 2870723, 5340880, 5741446, 11482892, 14353615, 22965784, 28707230, 45931568, 57414460, 114828920, 229657840]

約数ペア:

[(1, 229657840), (2, 114828920), (4, 57414460), (5, 45931568), (8, 28707230), (10, 22965784), (16, 14353615), (20, 11482892), (40, 5741446), (43, 5340880), (80, 2870723), (86, 2670440), (101, 2273840), (172, 1335220), (202, 1136920), (215, 1068176), (344, 667610), (404, 568460), (430, 534088), (505, 454768), (661, 347440), (688, 333805), (808, 284230), (860, 267044), (1010, 227384), (1322, 173720), (1616, 142115), (1720, 133522), (2020, 113692), (2644, 86860), (3305, 69488), (3440, 66761), (4040, 56846), (4343, 52880), (5288, 43430), (6610, 34744), (8080, 28423), (8686, 26440), (10576, 21715), (13220, 17372)]