68872400

素因数分解:

$2^4\times 5^2\times {\mathrm{172181}}^1$

素因数の和:172199

約数の個数: 30

約数和(自身を含む): 165466902

約数和(自身を除く): 96594502

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 172181, 344362, 688724, 860905, 1377448, 1721810, 2754896, 3443620, 4304525, 6887240, 8609050, 13774480, 17218100, 34436200, 68872400]

約数ペア:

[(1, 68872400), (2, 34436200), (4, 17218100), (5, 13774480), (8, 8609050), (10, 6887240), (16, 4304525), (20, 3443620), (25, 2754896), (40, 1721810), (50, 1377448), (80, 860905), (100, 688724), (200, 344362), (400, 172181)]