161559980

素因数分解:

$2^2\times 5^1\times {\mathrm{2113}}^1\times {\mathrm{3823}}^1$

素因数の和:5945

約数の個数: 24

約数和(自身を含む): 339525312

約数和(自身を除く): 177965332

約数列:

[1, 2, 4, 5, 10, 20, 2113, 3823, 4226, 7646, 8452, 10565, 15292, 19115, 21130, 38230, 42260, 76460, 8077999, 16155998, 32311996, 40389995, 80779990, 161559980]

約数ペア:

[(1, 161559980), (2, 80779990), (4, 40389995), (5, 32311996), (10, 16155998), (20, 8077999), (2113, 76460), (3823, 42260), (4226, 38230), (7646, 21130), (8452, 19115), (10565, 15292)]