20201021620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3361}}^1\times {\mathrm{23117}}^1$

素因数の和:26500

約数の個数: 48

約数和(自身を含む): 45700957008

約数和(自身を除く): 25499935388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3361, 6722, 13444, 16805, 23117, 33610, 43693, 46234, 67220, 87386, 92468, 115585, 174772, 218465, 231170, 300521, 436930, 462340, 601042, 873860, 1202084, 1502605, 3005210, 6010420, 77696237, 155392474, 310784948, 388481185, 776962370, 1010051081, 1553924740, 2020102162, 4040204324, 5050255405, 10100510810, 20201021620]

約数ペア:

[(1, 20201021620), (2, 10100510810), (4, 5050255405), (5, 4040204324), (10, 2020102162), (13, 1553924740), (20, 1010051081), (26, 776962370), (52, 388481185), (65, 310784948), (130, 155392474), (260, 77696237), (3361, 6010420), (6722, 3005210), (13444, 1502605), (16805, 1202084), (23117, 873860), (33610, 601042), (43693, 462340), (46234, 436930), (67220, 300521), (87386, 231170), (92468, 218465), (115585, 174772)]