27981740

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1373}}^1$

素因数の和:2401

約数の個数: 24

約数和(自身を含む): 58862160

約数和(自身を除く): 30880420

約数列:

[1, 2, 4, 5, 10, 20, 1019, 1373, 2038, 2746, 4076, 5095, 5492, 6865, 10190, 13730, 20380, 27460, 1399087, 2798174, 5596348, 6995435, 13990870, 27981740]

約数ペア:

[(1, 27981740), (2, 13990870), (4, 6995435), (5, 5596348), (10, 2798174), (20, 1399087), (1019, 27460), (1373, 20380), (2038, 13730), (2746, 10190), (4076, 6865), (5095, 5492)]