38921390

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28001}}^1$

素因数の和:28147

約数の個数: 16

約数和(自身を含む): 70565040

約数和(自身を除く): 31643650

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 28001, 56002, 140005, 280010, 3892139, 7784278, 19460695, 38921390]

約数ペア:

[(1, 38921390), (2, 19460695), (5, 7784278), (10, 3892139), (139, 280010), (278, 140005), (695, 56002), (1390, 28001)]