20199985420

素因数分解:

$2^2\times 5^1\times {\mathrm{8609}}^1\times {\mathrm{117319}}^1$

素因数の和:125937

約数の個数: 24

約数和(自身を含む): 42425258400

約数和(自身を除く): 22225272980

約数列:

[1, 2, 4, 5, 10, 20, 8609, 17218, 34436, 43045, 86090, 117319, 172180, 234638, 469276, 586595, 1173190, 2346380, 1009999271, 2019998542, 4039997084, 5049996355, 10099992710, 20199985420]

約数ペア:

[(1, 20199985420), (2, 10099992710), (4, 5049996355), (5, 4039997084), (10, 2019998542), (20, 1009999271), (8609, 2346380), (17218, 1173190), (34436, 586595), (43045, 469276), (86090, 234638), (117319, 172180)]