85079420

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20161}}^1$

素因数の和:20381

約数の個数: 24

約数和(自身を含む): 179522448

約数和(自身を除く): 94443028

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 20161, 40322, 80644, 100805, 201610, 403220, 4253971, 8507942, 17015884, 21269855, 42539710, 85079420]

約数ペア:

[(1, 85079420), (2, 42539710), (4, 21269855), (5, 17015884), (10, 8507942), (20, 4253971), (211, 403220), (422, 201610), (844, 100805), (1055, 80644), (2110, 40322), (4220, 20161)]