160803220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{40813}}^1$

素因数の和:41019

約数の個数: 24

約数和(自身を含む): 339409224

約数和(自身を除く): 178606004

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 40813, 81626, 163252, 204065, 408130, 816260, 8040161, 16080322, 32160644, 40200805, 80401610, 160803220]

約数ペア:

[(1, 160803220), (2, 80401610), (4, 40200805), (5, 32160644), (10, 16080322), (20, 8040161), (197, 816260), (394, 408130), (788, 204065), (985, 163252), (1970, 81626), (3940, 40813)]