2090000

素因数分解:

$2^4\times 5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:58

約数の個数: 100

約数和(自身を含む): 5810640

約数和(自身を除く): 3720640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 80, 88, 95, 100, 110, 125, 152, 176, 190, 200, 209, 220, 250, 275, 304, 380, 400, 418, 440, 475, 500, 550, 625, 760, 836, 880, 950, 1000, 1045, 1100, 1250, 1375, 1520, 1672, 1900, 2000, 2090, 2200, 2375, 2500, 2750, 3344, 3800, 4180, 4400, 4750, 5000, 5225, 5500, 6875, 7600, 8360, 9500, 10000, 10450, 11000, 11875, 13750, 16720, 19000, 20900, 22000, 23750, 26125, 27500, 38000, 41800, 47500, 52250, 55000, 83600, 95000, 104500, 110000, 130625, 190000, 209000, 261250, 418000, 522500, 1045000, 2090000]

約数ペア:

[(1, 2090000), (2, 1045000), (4, 522500), (5, 418000), (8, 261250), (10, 209000), (11, 190000), (16, 130625), (19, 110000), (20, 104500), (22, 95000), (25, 83600), (38, 55000), (40, 52250), (44, 47500), (50, 41800), (55, 38000), (76, 27500), (80, 26125), (88, 23750), (95, 22000), (100, 20900), (110, 19000), (125, 16720), (152, 13750), (176, 11875), (190, 11000), (200, 10450), (209, 10000), (220, 9500), (250, 8360), (275, 7600), (304, 6875), (380, 5500), (400, 5225), (418, 5000), (440, 4750), (475, 4400), (500, 4180), (550, 3800), (625, 3344), (760, 2750), (836, 2500), (880, 2375), (950, 2200), (1000, 2090), (1045, 2000), (1100, 1900), (1250, 1672), (1375, 1520)]