31915790

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22961}}^1$

素因数の和:23107

約数の個数: 16

約数和(自身を含む): 57864240

約数和(自身を除く): 25948450

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 22961, 45922, 114805, 229610, 3191579, 6383158, 15957895, 31915790]

約数ペア:

[(1, 31915790), (2, 15957895), (5, 6383158), (10, 3191579), (139, 229610), (278, 114805), (695, 45922), (1390, 22961)]