87941960

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{7937}}^1$

素因数の和:8225

約数の個数: 32

約数和(自身を含む): 198608760

約数和(自身を除く): 110666800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 7937, 11080, 15874, 31748, 39685, 63496, 79370, 158740, 317480, 2198549, 4397098, 8794196, 10992745, 17588392, 21985490, 43970980, 87941960]

約数ペア:

[(1, 87941960), (2, 43970980), (4, 21985490), (5, 17588392), (8, 10992745), (10, 8794196), (20, 4397098), (40, 2198549), (277, 317480), (554, 158740), (1108, 79370), (1385, 63496), (2216, 39685), (2770, 31748), (5540, 15874), (7937, 11080)]