142717820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1019413}}^1$

素因数の和:1019429

約数の個数: 24

約数和(自身を含む): 342523104

約数和(自身を除く): 199805284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1019413, 2038826, 4077652, 5097065, 7135891, 10194130, 14271782, 20388260, 28543564, 35679455, 71358910, 142717820]

約数ペア:

[(1, 142717820), (2, 71358910), (4, 35679455), (5, 28543564), (7, 20388260), (10, 14271782), (14, 10194130), (20, 7135891), (28, 5097065), (35, 4077652), (70, 2038826), (140, 1019413)]