20197636720

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2359537}}^1$

素因数の和:2359657

約数の個数: 40

約数和(自身を含む): 47398399344

約数和(自身を除く): 27200762624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 2359537, 4719074, 9438148, 11797685, 18876296, 23595370, 37752592, 47190740, 94381480, 188762960, 252470459, 504940918, 1009881836, 1262352295, 2019763672, 2524704590, 4039527344, 5049409180, 10098818360, 20197636720]

約数ペア:

[(1, 20197636720), (2, 10098818360), (4, 5049409180), (5, 4039527344), (8, 2524704590), (10, 2019763672), (16, 1262352295), (20, 1009881836), (40, 504940918), (80, 252470459), (107, 188762960), (214, 94381480), (428, 47190740), (535, 37752592), (856, 23595370), (1070, 18876296), (1712, 11797685), (2140, 9438148), (4280, 4719074), (8560, 2359537)]