8998000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:443

約数の個数: 80

約数和(自身を含む): 23793120

約数和(自身を除く): 14795120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 409, 440, 500, 550, 818, 880, 1000, 1100, 1375, 1636, 2000, 2045, 2200, 2750, 3272, 4090, 4400, 4499, 5500, 6544, 8180, 8998, 10225, 11000, 16360, 17996, 20450, 22000, 22495, 32720, 35992, 40900, 44990, 51125, 71984, 81800, 89980, 102250, 112475, 163600, 179960, 204500, 224950, 359920, 409000, 449900, 562375, 818000, 899800, 1124750, 1799600, 2249500, 4499000, 8998000]

約数ペア:

[(1, 8998000), (2, 4499000), (4, 2249500), (5, 1799600), (8, 1124750), (10, 899800), (11, 818000), (16, 562375), (20, 449900), (22, 409000), (25, 359920), (40, 224950), (44, 204500), (50, 179960), (55, 163600), (80, 112475), (88, 102250), (100, 89980), (110, 81800), (125, 71984), (176, 51125), (200, 44990), (220, 40900), (250, 35992), (275, 32720), (400, 22495), (409, 22000), (440, 20450), (500, 17996), (550, 16360), (818, 11000), (880, 10225), (1000, 8998), (1100, 8180), (1375, 6544), (1636, 5500), (2000, 4499), (2045, 4400), (2200, 4090), (2750, 3272)]