20505745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{5347}}^1$

素因数の和:5424

約数の個数: 16

約数和(自身を含む): 26953920

約数和(自身を除く): 6448175

約数列:

[1, 5, 13, 59, 65, 295, 767, 3835, 5347, 26735, 69511, 315473, 347555, 1577365, 4101149, 20505745]

約数ペア:

[(1, 20505745), (5, 4101149), (13, 1577365), (59, 347555), (65, 315473), (295, 69511), (767, 26735), (3835, 5347)]