20664437020

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1421213}}^1$

素因数の和:1421949

約数の個数: 24

約数和(自身を含む): 43455039264

約数和(自身を除く): 22790602244

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2908, 3635, 7270, 14540, 1421213, 2842426, 5684852, 7106065, 14212130, 28424260, 1033221851, 2066443702, 4132887404, 5166109255, 10332218510, 20664437020]

約数ペア:

[(1, 20664437020), (2, 10332218510), (4, 5166109255), (5, 4132887404), (10, 2066443702), (20, 1033221851), (727, 28424260), (1454, 14212130), (2908, 7106065), (3635, 5684852), (7270, 2842426), (14540, 1421213)]