131448400

素因数分解:

$2^4\times 5^2\times {\mathrm{328621}}^1$

素因数の和:328639

約数の個数: 30

約数和(自身を含む): 315805742

約数和(自身を除く): 184357342

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 328621, 657242, 1314484, 1643105, 2628968, 3286210, 5257936, 6572420, 8215525, 13144840, 16431050, 26289680, 32862100, 65724200, 131448400]

約数ペア:

[(1, 131448400), (2, 65724200), (4, 32862100), (5, 26289680), (8, 16431050), (10, 13144840), (16, 8215525), (20, 6572420), (25, 5257936), (40, 3286210), (50, 2628968), (80, 1643105), (100, 1314484), (200, 657242), (400, 328621)]