20831380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33599}}^1$

素因数の和:33639

約数の個数: 24

約数和(自身を含む): 45158400

約数和(自身を除く): 24327020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33599, 67198, 134396, 167995, 335990, 671980, 1041569, 2083138, 4166276, 5207845, 10415690, 20831380]

約数ペア:

[(1, 20831380), (2, 10415690), (4, 5207845), (5, 4166276), (10, 2083138), (20, 1041569), (31, 671980), (62, 335990), (124, 167995), (155, 134396), (310, 67198), (620, 33599)]