12480500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 27627600

約数和(自身を除く): 15147100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 229, 250, 436, 458, 500, 545, 916, 1090, 1145, 2180, 2290, 2725, 4580, 5450, 5725, 10900, 11450, 13625, 22900, 24961, 27250, 28625, 49922, 54500, 57250, 99844, 114500, 124805, 249610, 499220, 624025, 1248050, 2496100, 3120125, 6240250, 12480500]

約数ペア:

[(1, 12480500), (2, 6240250), (4, 3120125), (5, 2496100), (10, 1248050), (20, 624025), (25, 499220), (50, 249610), (100, 124805), (109, 114500), (125, 99844), (218, 57250), (229, 54500), (250, 49922), (436, 28625), (458, 27250), (500, 24961), (545, 22900), (916, 13625), (1090, 11450), (1145, 10900), (2180, 5725), (2290, 5450), (2725, 4580)]