12604400

素因数分解:

$2^4\times 5^2\times {\mathrm{31511}}^1$

素因数の和:31529

約数の個数: 30

約数和(自身を含む): 30283032

約数和(自身を除く): 17678632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31511, 63022, 126044, 157555, 252088, 315110, 504176, 630220, 787775, 1260440, 1575550, 2520880, 3151100, 6302200, 12604400]

約数ペア:

[(1, 12604400), (2, 6302200), (4, 3151100), (5, 2520880), (8, 1575550), (10, 1260440), (16, 787775), (20, 630220), (25, 504176), (40, 315110), (50, 252088), (80, 157555), (100, 126044), (200, 63022), (400, 31511)]