20460080

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8819}}^1$

素因数の和:8861

約数の個数: 40

約数和(自身を含む): 49215600

約数和(自身を除く): 28755520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8819, 17638, 35276, 44095, 70552, 88190, 141104, 176380, 255751, 352760, 511502, 705520, 1023004, 1278755, 2046008, 2557510, 4092016, 5115020, 10230040, 20460080]

約数ペア:

[(1, 20460080), (2, 10230040), (4, 5115020), (5, 4092016), (8, 2557510), (10, 2046008), (16, 1278755), (20, 1023004), (29, 705520), (40, 511502), (58, 352760), (80, 255751), (116, 176380), (145, 141104), (232, 88190), (290, 70552), (464, 44095), (580, 35276), (1160, 17638), (2320, 8819)]