139967480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112877}}^1$

素因数の和:112919

約数の個数: 32

約数和(自身を含む): 325088640

約数和(自身を除く): 185121160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 112877, 225754, 451508, 564385, 903016, 1128770, 2257540, 3499187, 4515080, 6998374, 13996748, 17495935, 27993496, 34991870, 69983740, 139967480]

約数ペア:

[(1, 139967480), (2, 69983740), (4, 34991870), (5, 27993496), (8, 17495935), (10, 13996748), (20, 6998374), (31, 4515080), (40, 3499187), (62, 2257540), (124, 1128770), (155, 903016), (248, 564385), (310, 451508), (620, 225754), (1240, 112877)]