178640140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1276001}}^1$

素因数の和:1276017

約数の個数: 24

約数和(自身を含む): 428736672

約数和(自身を除く): 250096532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1276001, 2552002, 5104004, 6380005, 8932007, 12760010, 17864014, 25520020, 35728028, 44660035, 89320070, 178640140]

約数ペア:

[(1, 178640140), (2, 89320070), (4, 44660035), (5, 35728028), (7, 25520020), (10, 17864014), (14, 12760010), (20, 8932007), (28, 6380005), (35, 5104004), (70, 2552002), (140, 1276001)]