31945520

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2027}}^1$

素因数の和:2237

約数の個数: 40

約数和(自身を含む): 74687184

約数和(自身を除く): 42741664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 2027, 3152, 3940, 4054, 7880, 8108, 10135, 15760, 16216, 20270, 32432, 40540, 81080, 162160, 399319, 798638, 1597276, 1996595, 3194552, 3993190, 6389104, 7986380, 15972760, 31945520]

約数ペア:

[(1, 31945520), (2, 15972760), (4, 7986380), (5, 6389104), (8, 3993190), (10, 3194552), (16, 1996595), (20, 1597276), (40, 798638), (80, 399319), (197, 162160), (394, 81080), (788, 40540), (985, 32432), (1576, 20270), (1970, 16216), (2027, 15760), (3152, 10135), (3940, 8108), (4054, 7880)]