20936780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33769}}^1$

素因数の和:33809

約数の個数: 24

約数和(自身を含む): 45386880

約数和(自身を除く): 24450100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33769, 67538, 135076, 168845, 337690, 675380, 1046839, 2093678, 4187356, 5234195, 10468390, 20936780]

約数ペア:

[(1, 20936780), (2, 10468390), (4, 5234195), (5, 4187356), (10, 2093678), (20, 1046839), (31, 675380), (62, 337690), (124, 168845), (155, 135076), (310, 67538), (620, 33769)]