20178382040

素因数分解:

$2^3\times 5^1\times {\mathrm{4057}}^1\times {\mathrm{124343}}^1$

素因数の和:128411

約数の個数: 32

約数和(自身を含む): 45412915680

約数和(自身を除く): 25234533640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4057, 8114, 16228, 20285, 32456, 40570, 81140, 124343, 162280, 248686, 497372, 621715, 994744, 1243430, 2486860, 4973720, 504459551, 1008919102, 2017838204, 2522297755, 4035676408, 5044595510, 10089191020, 20178382040]

約数ペア:

[(1, 20178382040), (2, 10089191020), (4, 5044595510), (5, 4035676408), (8, 2522297755), (10, 2017838204), (20, 1008919102), (40, 504459551), (4057, 4973720), (8114, 2486860), (16228, 1243430), (20285, 994744), (32456, 621715), (40570, 497372), (81140, 248686), (124343, 162280)]