42387920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4861}}^1$

素因数の和:4983

約数の個数: 40

約数和(自身を含む): 99476520

約数和(自身を除く): 57088600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 4861, 8720, 9722, 19444, 24305, 38888, 48610, 77776, 97220, 194440, 388880, 529849, 1059698, 2119396, 2649245, 4238792, 5298490, 8477584, 10596980, 21193960, 42387920]

約数ペア:

[(1, 42387920), (2, 21193960), (4, 10596980), (5, 8477584), (8, 5298490), (10, 4238792), (16, 2649245), (20, 2119396), (40, 1059698), (80, 529849), (109, 388880), (218, 194440), (436, 97220), (545, 77776), (872, 48610), (1090, 38888), (1744, 24305), (2180, 19444), (4360, 9722), (4861, 8720)]