4510000

素因数分解:

$2^4\times 5^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 100

約数和(自身を含む): 12202344

約数和(自身を除く): 7692344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 41, 44, 50, 55, 80, 82, 88, 100, 110, 125, 164, 176, 200, 205, 220, 250, 275, 328, 400, 410, 440, 451, 500, 550, 625, 656, 820, 880, 902, 1000, 1025, 1100, 1250, 1375, 1640, 1804, 2000, 2050, 2200, 2255, 2500, 2750, 3280, 3608, 4100, 4400, 4510, 5000, 5125, 5500, 6875, 7216, 8200, 9020, 10000, 10250, 11000, 11275, 13750, 16400, 18040, 20500, 22000, 22550, 25625, 27500, 36080, 41000, 45100, 51250, 55000, 56375, 82000, 90200, 102500, 110000, 112750, 180400, 205000, 225500, 281875, 410000, 451000, 563750, 902000, 1127500, 2255000, 4510000]

約数ペア:

[(1, 4510000), (2, 2255000), (4, 1127500), (5, 902000), (8, 563750), (10, 451000), (11, 410000), (16, 281875), (20, 225500), (22, 205000), (25, 180400), (40, 112750), (41, 110000), (44, 102500), (50, 90200), (55, 82000), (80, 56375), (82, 55000), (88, 51250), (100, 45100), (110, 41000), (125, 36080), (164, 27500), (176, 25625), (200, 22550), (205, 22000), (220, 20500), (250, 18040), (275, 16400), (328, 13750), (400, 11275), (410, 11000), (440, 10250), (451, 10000), (500, 9020), (550, 8200), (625, 7216), (656, 6875), (820, 5500), (880, 5125), (902, 5000), (1000, 4510), (1025, 4400), (1100, 4100), (1250, 3608), (1375, 3280), (1640, 2750), (1804, 2500), (2000, 2255), (2050, 2200)]