2997500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:144

約数の個数: 60

約数和(自身を含む): 7216440

約数和(自身を除く): 4218940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 109, 110, 125, 218, 220, 250, 275, 436, 500, 545, 550, 625, 1090, 1100, 1199, 1250, 1375, 2180, 2398, 2500, 2725, 2750, 4796, 5450, 5500, 5995, 6875, 10900, 11990, 13625, 13750, 23980, 27250, 27500, 29975, 54500, 59950, 68125, 119900, 136250, 149875, 272500, 299750, 599500, 749375, 1498750, 2997500]

約数ペア:

[(1, 2997500), (2, 1498750), (4, 749375), (5, 599500), (10, 299750), (11, 272500), (20, 149875), (22, 136250), (25, 119900), (44, 68125), (50, 59950), (55, 54500), (100, 29975), (109, 27500), (110, 27250), (125, 23980), (218, 13750), (220, 13625), (250, 11990), (275, 10900), (436, 6875), (500, 5995), (545, 5500), (550, 5450), (625, 4796), (1090, 2750), (1100, 2725), (1199, 2500), (1250, 2398), (1375, 2180)]