15972760

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2027}}^1$

素因数の和:2235

約数の個数: 32

約数和(自身を含む): 36138960

約数和(自身を除く): 20166200

約数列:

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

約数ペア:

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