16813840

素因数分解:

$2^4\times 5^1\times {\mathrm{210173}}^1$

素因数の和:210186

約数の個数: 20

約数和(自身を含む): 39092364

約数和(自身を除く): 22278524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210173, 420346, 840692, 1050865, 1681384, 2101730, 3362768, 4203460, 8406920, 16813840]

約数ペア:

[(1, 16813840), (2, 8406920), (4, 4203460), (5, 3362768), (8, 2101730), (10, 1681384), (16, 1050865), (20, 840692), (40, 420346), (80, 210173)]