18906920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20551}}^1$

素因数の和:20585

約数の個数: 32

約数和(自身を含む): 44392320

約数和(自身を除く): 25485400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20551, 41102, 82204, 102755, 164408, 205510, 411020, 472673, 822040, 945346, 1890692, 2363365, 3781384, 4726730, 9453460, 18906920]

約数ペア:

[(1, 18906920), (2, 9453460), (4, 4726730), (5, 3781384), (8, 2363365), (10, 1890692), (20, 945346), (23, 822040), (40, 472673), (46, 411020), (92, 205510), (115, 164408), (184, 102755), (230, 82204), (460, 41102), (920, 20551)]