291230440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{70687}}^1$

素因数の和:70801

約数の個数: 32

約数和(自身を含む): 661639680

約数和(自身を除く): 370409240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 70687, 141374, 282748, 353435, 565496, 706870, 1413740, 2827480, 7280761, 14561522, 29123044, 36403805, 58246088, 72807610, 145615220, 291230440]

約数ペア:

[(1, 291230440), (2, 145615220), (4, 72807610), (5, 58246088), (8, 36403805), (10, 29123044), (20, 14561522), (40, 7280761), (103, 2827480), (206, 1413740), (412, 706870), (515, 565496), (824, 353435), (1030, 282748), (2060, 141374), (4120, 70687)]