2128925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 2833152

約数和(自身を除く): 704227

約数列:

[1, 5, 25, 31, 41, 67, 155, 205, 335, 775, 1025, 1271, 1675, 2077, 2747, 6355, 10385, 13735, 31775, 51925, 68675, 85157, 425785, 2128925]

約数ペア:

[(1, 2128925), (5, 425785), (25, 85157), (31, 68675), (41, 51925), (67, 31775), (155, 13735), (205, 10385), (335, 6355), (775, 2747), (1025, 2077), (1271, 1675)]