28720315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{7489}}^1$

素因数の和:7566

約数の個数: 16

約数和(自身を含む): 37749600

約数和(自身を除く): 9029285

約数列:

[1, 5, 13, 59, 65, 295, 767, 3835, 7489, 37445, 97357, 441851, 486785, 2209255, 5744063, 28720315]

約数ペア:

[(1, 28720315), (5, 5744063), (13, 2209255), (59, 486785), (65, 441851), (295, 97357), (767, 37445), (3835, 7489)]