8244400

素因数分解:

$2^4\times 5^2\times {\mathrm{20611}}^1$

素因数の和:20629

約数の個数: 30

約数和(自身を含む): 19808132

約数和(自身を除く): 11563732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20611, 41222, 82444, 103055, 164888, 206110, 329776, 412220, 515275, 824440, 1030550, 1648880, 2061100, 4122200, 8244400]

約数ペア:

[(1, 8244400), (2, 4122200), (4, 2061100), (5, 1648880), (8, 1030550), (10, 824440), (16, 515275), (20, 412220), (25, 329776), (40, 206110), (50, 164888), (80, 103055), (100, 82444), (200, 41222), (400, 20611)]