128814775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1951}}^1$

素因数の和:2119

約数の個数: 24

約数和(自身を含む): 169433600

約数和(自身を除く): 40618825

約数列:

[1, 5, 19, 25, 95, 139, 475, 695, 1951, 2641, 3475, 9755, 13205, 37069, 48775, 66025, 185345, 271189, 926725, 1355945, 5152591, 6779725, 25762955, 128814775]

約数ペア:

[(1, 128814775), (5, 25762955), (19, 6779725), (25, 5152591), (95, 1355945), (139, 926725), (475, 271189), (695, 185345), (1951, 66025), (2641, 48775), (3475, 37069), (9755, 13205)]