220000

素因数分解:

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

素因数の和:41

約数の個数: 60

約数和(自身を含む): 590436

約数和(自身を除く): 370436

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 352, 400, 440, 500, 550, 625, 800, 880, 1000, 1100, 1250, 1375, 1760, 2000, 2200, 2500, 2750, 4000, 4400, 5000, 5500, 6875, 8800, 10000, 11000, 13750, 20000, 22000, 27500, 44000, 55000, 110000, 220000]

約数ペア:

[(1, 220000), (2, 110000), (4, 55000), (5, 44000), (8, 27500), (10, 22000), (11, 20000), (16, 13750), (20, 11000), (22, 10000), (25, 8800), (32, 6875), (40, 5500), (44, 5000), (50, 4400), (55, 4000), (80, 2750), (88, 2500), (100, 2200), (110, 2000), (125, 1760), (160, 1375), (176, 1250), (200, 1100), (220, 1000), (250, 880), (275, 800), (352, 625), (400, 550), (440, 500)]