121561520

素因数分解:

$2^4\times 5^1\times {\mathrm{1519519}}^1$

素因数の和:1519532

約数の個数: 20

約数和(自身を含む): 282630720

約数和(自身を除く): 161069200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1519519, 3039038, 6078076, 7597595, 12156152, 15195190, 24312304, 30390380, 60780760, 121561520]

約数ペア:

[(1, 121561520), (2, 60780760), (4, 30390380), (5, 24312304), (8, 15195190), (10, 12156152), (16, 7597595), (20, 6078076), (40, 3039038), (80, 1519519)]