51336400

素因数分解:

$2^4\times 5^2\times {\mathrm{128341}}^1$

素因数の和:128359

約数の個数: 30

約数和(自身を含む): 123336662

約数和(自身を除く): 72000262

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128341, 256682, 513364, 641705, 1026728, 1283410, 2053456, 2566820, 3208525, 5133640, 6417050, 10267280, 12834100, 25668200, 51336400]

約数ペア:

[(1, 51336400), (2, 25668200), (4, 12834100), (5, 10267280), (8, 6417050), (10, 5133640), (16, 3208525), (20, 2566820), (25, 2053456), (40, 1283410), (50, 1026728), (80, 641705), (100, 513364), (200, 256682), (400, 128341)]