25850000

素因数分解:

$2^4\times 5^5\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:91

約数の個数: 120

約数和(自身を含む): 69745536

約数和(自身を除く): 43895536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 47, 50, 55, 80, 88, 94, 100, 110, 125, 176, 188, 200, 220, 235, 250, 275, 376, 400, 440, 470, 500, 517, 550, 625, 752, 880, 940, 1000, 1034, 1100, 1175, 1250, 1375, 1880, 2000, 2068, 2200, 2350, 2500, 2585, 2750, 3125, 3760, 4136, 4400, 4700, 5000, 5170, 5500, 5875, 6250, 6875, 8272, 9400, 10000, 10340, 11000, 11750, 12500, 12925, 13750, 18800, 20680, 22000, 23500, 25000, 25850, 27500, 29375, 34375, 41360, 47000, 50000, 51700, 55000, 58750, 64625, 68750, 94000, 103400, 110000, 117500, 129250, 137500, 146875, 206800, 235000, 258500, 275000, 293750, 323125, 470000, 517000, 550000, 587500, 646250, 1034000, 1175000, 1292500, 1615625, 2350000, 2585000, 3231250, 5170000, 6462500, 12925000, 25850000]

約数ペア:

[(1, 25850000), (2, 12925000), (4, 6462500), (5, 5170000), (8, 3231250), (10, 2585000), (11, 2350000), (16, 1615625), (20, 1292500), (22, 1175000), (25, 1034000), (40, 646250), (44, 587500), (47, 550000), (50, 517000), (55, 470000), (80, 323125), (88, 293750), (94, 275000), (100, 258500), (110, 235000), (125, 206800), (176, 146875), (188, 137500), (200, 129250), (220, 117500), (235, 110000), (250, 103400), (275, 94000), (376, 68750), (400, 64625), (440, 58750), (470, 55000), (500, 51700), (517, 50000), (550, 47000), (625, 41360), (752, 34375), (880, 29375), (940, 27500), (1000, 25850), (1034, 25000), (1100, 23500), (1175, 22000), (1250, 20680), (1375, 18800), (1880, 13750), (2000, 12925), (2068, 12500), (2200, 11750), (2350, 11000), (2500, 10340), (2585, 10000), (2750, 9400), (3125, 8272), (3760, 6875), (4136, 6250), (4400, 5875), (4700, 5500), (5000, 5170)]