20294605

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 24845184

約数和(自身を除く): 4550579

約数列:

[1, 5, 103, 157, 251, 515, 785, 1255, 16171, 25853, 39407, 80855, 129265, 197035, 4058921, 20294605]

約数ペア:

[(1, 20294605), (5, 4058921), (103, 197035), (157, 129265), (251, 80855), (515, 39407), (785, 25853), (1255, 16171)]