20284540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32717}}^1$

素因数の和:32757

約数の個数: 24

約数和(自身を含む): 43972992

約数和(自身を除く): 23688452

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32717, 65434, 130868, 163585, 327170, 654340, 1014227, 2028454, 4056908, 5071135, 10142270, 20284540]

約数ペア:

[(1, 20284540), (2, 10142270), (4, 5071135), (5, 4056908), (10, 2028454), (20, 1014227), (31, 654340), (62, 327170), (124, 163585), (155, 130868), (310, 65434), (620, 32717)]