123456140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{84559}}^1$

素因数の和:84641

約数の個数: 24

約数和(自身を含む): 262812480

約数和(自身を除く): 139356340

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 84559, 169118, 338236, 422795, 845590, 1691180, 6172807, 12345614, 24691228, 30864035, 61728070, 123456140]

約数ペア:

[(1, 123456140), (2, 61728070), (4, 30864035), (5, 24691228), (10, 12345614), (20, 6172807), (73, 1691180), (146, 845590), (292, 422795), (365, 338236), (730, 169118), (1460, 84559)]