20460400

素因数分解:

$2^4\times 5^2\times {\mathrm{51151}}^1$

素因数の和:51169

約数の個数: 30

約数和(自身を含む): 49157072

約数和(自身を除く): 28696672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51151, 102302, 204604, 255755, 409208, 511510, 818416, 1023020, 1278775, 2046040, 2557550, 4092080, 5115100, 10230200, 20460400]

約数ペア:

[(1, 20460400), (2, 10230200), (4, 5115100), (5, 4092080), (8, 2557550), (10, 2046040), (16, 1278775), (20, 1023020), (25, 818416), (40, 511510), (50, 409208), (80, 255755), (100, 204604), (200, 102302), (400, 51151)]