20160921145

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{518209}}^1$

素因数の和:518496

約数の個数: 16

約数和(自身を含む): 25073072640

約数和(自身を除く): 4912151495

約数列:

[1, 5, 31, 155, 251, 1255, 7781, 38905, 518209, 2591045, 16064479, 80322395, 130070459, 650352295, 4032184229, 20160921145]

約数ペア:

[(1, 20160921145), (5, 4032184229), (31, 650352295), (155, 130070459), (251, 80322395), (1255, 16064479), (7781, 2591045), (38905, 518209)]