20270575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{643}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 27390608

約数和(自身を除く): 7120033

約数列:

[1, 5, 13, 25, 65, 97, 325, 485, 643, 1261, 2425, 3215, 6305, 8359, 16075, 31525, 41795, 62371, 208975, 311855, 810823, 1559275, 4054115, 20270575]

約数ペア:

[(1, 20270575), (5, 4054115), (13, 1559275), (25, 810823), (65, 311855), (97, 208975), (325, 62371), (485, 41795), (643, 31525), (1261, 16075), (2425, 8359), (3215, 6305)]