394710040

素因数分解:

$2^3\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{7187}}^1$

素因数の和:8571

約数の個数: 32

約数和(自身を含む): 888868080

約数和(自身を除く): 494158040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1373, 2746, 5492, 6865, 7187, 10984, 13730, 14374, 27460, 28748, 35935, 54920, 57496, 71870, 143740, 287480, 9867751, 19735502, 39471004, 49338755, 78942008, 98677510, 197355020, 394710040]

約数ペア:

[(1, 394710040), (2, 197355020), (4, 98677510), (5, 78942008), (8, 49338755), (10, 39471004), (20, 19735502), (40, 9867751), (1373, 287480), (2746, 143740), (5492, 71870), (6865, 57496), (7187, 54920), (10984, 35935), (13730, 28748), (14374, 27460)]