7950920

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1009}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 17998200

約数和(自身を除く): 10047280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1009, 1576, 1970, 2018, 3940, 4036, 5045, 7880, 8072, 10090, 20180, 40360, 198773, 397546, 795092, 993865, 1590184, 1987730, 3975460, 7950920]

約数ペア:

[(1, 7950920), (2, 3975460), (4, 1987730), (5, 1590184), (8, 993865), (10, 795092), (20, 397546), (40, 198773), (197, 40360), (394, 20180), (788, 10090), (985, 8072), (1009, 7880), (1576, 5045), (1970, 4036), (2018, 3940)]