20171390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2099}}^1$

素因数の和:2168

約数の個数: 24

約数和(自身を含む): 37535400

約数和(自身を除く): 17364010

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 2099, 4198, 4805, 9610, 10495, 20990, 65069, 130138, 325345, 650690, 2017139, 4034278, 10085695, 20171390]

約数ペア:

[(1, 20171390), (2, 10085695), (5, 4034278), (10, 2017139), (31, 650690), (62, 325345), (155, 130138), (310, 65069), (961, 20990), (1922, 10495), (2099, 9610), (4198, 4805)]