212892440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{87251}}^1$

素因数の和:87323

約数の個数: 32

約数和(自身を含む): 486866160

約数和(自身を除く): 273973720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 87251, 174502, 349004, 436255, 698008, 872510, 1745020, 3490040, 5322311, 10644622, 21289244, 26611555, 42578488, 53223110, 106446220, 212892440]

約数ペア:

[(1, 212892440), (2, 106446220), (4, 53223110), (5, 42578488), (8, 26611555), (10, 21289244), (20, 10644622), (40, 5322311), (61, 3490040), (122, 1745020), (244, 872510), (305, 698008), (488, 436255), (610, 349004), (1220, 174502), (2440, 87251)]