20803413776

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31712521}}^1$

素因数の和:31712570

約数の個数: 20

約数和(自身を含む): 41289703644

約数和(自身を除く): 20486289868

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31712521, 63425042, 126850084, 253700168, 507400336, 1300213361, 2600426722, 5200853444, 10401706888, 20803413776]

約数ペア:

[(1, 20803413776), (2, 10401706888), (4, 5200853444), (8, 2600426722), (16, 1300213361), (41, 507400336), (82, 253700168), (164, 126850084), (328, 63425042), (656, 31712521)]