161725840

素因数分解:

$2^4\times 5^1\times {\mathrm{2021573}}^1$

素因数の和:2021586

約数の個数: 20

約数和(自身を含む): 376012764

約数和(自身を除く): 214286924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2021573, 4043146, 8086292, 10107865, 16172584, 20215730, 32345168, 40431460, 80862920, 161725840]

約数ペア:

[(1, 161725840), (2, 80862920), (4, 40431460), (5, 32345168), (8, 20215730), (10, 16172584), (16, 10107865), (20, 8086292), (40, 4043146), (80, 2021573)]