26208880

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1663}}^1$

素因数の和:1873

約数の個数: 40

約数和(自身を含む): 61281792

約数和(自身を除く): 35072912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1663, 1970, 3152, 3326, 3940, 6652, 7880, 8315, 13304, 15760, 16630, 26608, 33260, 66520, 133040, 327611, 655222, 1310444, 1638055, 2620888, 3276110, 5241776, 6552220, 13104440, 26208880]

約数ペア:

[(1, 26208880), (2, 13104440), (4, 6552220), (5, 5241776), (8, 3276110), (10, 2620888), (16, 1638055), (20, 1310444), (40, 655222), (80, 327611), (197, 133040), (394, 66520), (788, 33260), (985, 26608), (1576, 16630), (1663, 15760), (1970, 13304), (3152, 8315), (3326, 7880), (3940, 6652)]