123890020

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{6079}}^1$

素因数の和:7107

約数の個数: 24

約数和(自身を含む): 260467200

約数和(自身を除く): 136577180

約数列:

[1, 2, 4, 5, 10, 20, 1019, 2038, 4076, 5095, 6079, 10190, 12158, 20380, 24316, 30395, 60790, 121580, 6194501, 12389002, 24778004, 30972505, 61945010, 123890020]

約数ペア:

[(1, 123890020), (2, 61945010), (4, 30972505), (5, 24778004), (10, 12389002), (20, 6194501), (1019, 121580), (2038, 60790), (4076, 30395), (5095, 24316), (6079, 20380), (10190, 12158)]