51372400

素因数分解:

$2^4\times 5^2\times {\mathrm{128431}}^1$

素因数の和:128449

約数の個数: 30

約数和(自身を含む): 123423152

約数和(自身を除く): 72050752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128431, 256862, 513724, 642155, 1027448, 1284310, 2054896, 2568620, 3210775, 5137240, 6421550, 10274480, 12843100, 25686200, 51372400]

約数ペア:

[(1, 51372400), (2, 25686200), (4, 12843100), (5, 10274480), (8, 6421550), (10, 5137240), (16, 3210775), (20, 2568620), (25, 2054896), (40, 1284310), (50, 1027448), (80, 642155), (100, 513724), (200, 256862), (400, 128431)]