20392885

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{883}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 25459200

約数和(自身を除く): 5066315

約数列:

[1, 5, 31, 149, 155, 745, 883, 4415, 4619, 23095, 27373, 131567, 136865, 657835, 4078577, 20392885]

約数ペア:

[(1, 20392885), (5, 4078577), (31, 657835), (149, 136865), (155, 131567), (745, 27373), (883, 23095), (4415, 4619)]