78090400

素因数分解:

$2^5\times 5^2\times {\mathrm{97613}}^1$

素因数の和:97633

約数の個数: 36

約数和(自身を含む): 190640142

約数和(自身を除く): 112549742

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 97613, 195226, 390452, 488065, 780904, 976130, 1561808, 1952260, 2440325, 3123616, 3904520, 4880650, 7809040, 9761300, 15618080, 19522600, 39045200, 78090400]

約数ペア:

[(1, 78090400), (2, 39045200), (4, 19522600), (5, 15618080), (8, 9761300), (10, 7809040), (16, 4880650), (20, 3904520), (25, 3123616), (32, 2440325), (40, 1952260), (50, 1561808), (80, 976130), (100, 780904), (160, 488065), (200, 390452), (400, 195226), (800, 97613)]