161685745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 226920960

約数和(自身を除く): 65235215

約数列:

[1, 5, 13, 23, 37, 65, 79, 115, 185, 299, 395, 481, 851, 1027, 1369, 1495, 1817, 2405, 2923, 4255, 5135, 6845, 9085, 11063, 14615, 17797, 23621, 31487, 37999, 55315, 67229, 88985, 108151, 118105, 157435, 189995, 336145, 409331, 540755, 873977, 1405963, 2046655, 2487473, 4369885, 7029815, 12437365, 32337149, 161685745]

約数ペア:

[(1, 161685745), (5, 32337149), (13, 12437365), (23, 7029815), (37, 4369885), (65, 2487473), (79, 2046655), (115, 1405963), (185, 873977), (299, 540755), (395, 409331), (481, 336145), (851, 189995), (1027, 157435), (1369, 118105), (1495, 108151), (1817, 88985), (2405, 67229), (2923, 55315), (4255, 37999), (5135, 31487), (6845, 23621), (9085, 17797), (11063, 14615)]