20375991505

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{3989}}^1\times {\mathrm{7457}}^1$

素因数の和:11588

約数の個数: 16

約数和(自身を含む): 24639143760

約数和(自身を除く): 4263152255

約数列:

[1, 5, 137, 685, 3989, 7457, 19945, 37285, 546493, 1021609, 2732465, 5108045, 29745973, 148729865, 4075198301, 20375991505]

約数ペア:

[(1, 20375991505), (5, 4075198301), (137, 148729865), (685, 29745973), (3989, 5108045), (7457, 2732465), (19945, 1021609), (37285, 546493)]