30720039

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47189}}^1$

素因数の和:47230

約数の個数: 16

約数和(自身を含む): 48322560

約数和(自身を除く): 17602521

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 47189, 141567, 330323, 990969, 1462859, 4388577, 10240013, 30720039]

約数ペア:

[(1, 30720039), (3, 10240013), (7, 4388577), (21, 1462859), (31, 990969), (93, 330323), (217, 141567), (651, 47189)]