20003945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{467}}^1\times {\mathrm{659}}^1$

素因数の和:1144

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 5941975

約数列:

[1, 5, 13, 65, 467, 659, 2335, 3295, 6071, 8567, 30355, 42835, 307753, 1538765, 4000789, 20003945]

約数ペア:

[(1, 20003945), (5, 4000789), (13, 1538765), (65, 307753), (467, 42835), (659, 30355), (2335, 8567), (3295, 6071)]