17721920

素因数分解:

$2^6\times 5^1\times {\mathrm{55381}}^1$

素因数の和:55398

約数の個数: 28

約数和(自身を含む): 42201084

約数和(自身を除く): 24479164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 55381, 110762, 221524, 276905, 443048, 553810, 886096, 1107620, 1772192, 2215240, 3544384, 4430480, 8860960, 17721920]

約数ペア:

[(1, 17721920), (2, 8860960), (4, 4430480), (5, 3544384), (8, 2215240), (10, 1772192), (16, 1107620), (20, 886096), (32, 553810), (40, 443048), (64, 276905), (80, 221524), (160, 110762), (320, 55381)]