19155590

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13781}}^1$

素因数の和:13927

約数の個数: 16

約数和(自身を含む): 34730640

約数和(自身を除く): 15575050

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 13781, 27562, 68905, 137810, 1915559, 3831118, 9577795, 19155590]

約数ペア:

[(1, 19155590), (2, 9577795), (5, 3831118), (10, 1915559), (139, 137810), (278, 68905), (695, 27562), (1390, 13781)]