397191380

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{36709}}^1$

素因数の和:37259

約数の個数: 24

約数和(自身を含む): 835666440

約数和(自身を除く): 438475060

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 36709, 73418, 146836, 183545, 367090, 734180, 19859569, 39719138, 79438276, 99297845, 198595690, 397191380]

約数ペア:

[(1, 397191380), (2, 198595690), (4, 99297845), (5, 79438276), (10, 39719138), (20, 19859569), (541, 734180), (1082, 367090), (2164, 183545), (2705, 146836), (5410, 73418), (10820, 36709)]