65210800

素因数分解:

$2^4\times 5^2\times {\mathrm{163027}}^1$

素因数の和:163045

約数の個数: 30

約数和(自身を含む): 156669908

約数和(自身を除く): 91459108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 163027, 326054, 652108, 815135, 1304216, 1630270, 2608432, 3260540, 4075675, 6521080, 8151350, 13042160, 16302700, 32605400, 65210800]

約数ペア:

[(1, 65210800), (2, 32605400), (4, 16302700), (5, 13042160), (8, 8151350), (10, 6521080), (16, 4075675), (20, 3260540), (25, 2608432), (40, 1630270), (50, 1304216), (80, 815135), (100, 652108), (200, 326054), (400, 163027)]