220193840

素因数分解:

$2^4\times 5^1\times {\mathrm{2752423}}^1$

素因数の和:2752436

約数の個数: 20

約数和(自身を含む): 511950864

約数和(自身を除く): 291757024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2752423, 5504846, 11009692, 13762115, 22019384, 27524230, 44038768, 55048460, 110096920, 220193840]

約数ペア:

[(1, 220193840), (2, 110096920), (4, 55048460), (5, 44038768), (8, 27524230), (10, 22019384), (16, 13762115), (20, 11009692), (40, 5504846), (80, 2752423)]