22222000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 80

約数和(自身を含む): 55246464

約数和(自身を除く): 33024464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 250, 271, 328, 400, 410, 500, 542, 656, 820, 1000, 1025, 1084, 1355, 1640, 2000, 2050, 2168, 2710, 3280, 4100, 4336, 5125, 5420, 6775, 8200, 10250, 10840, 11111, 13550, 16400, 20500, 21680, 22222, 27100, 33875, 41000, 44444, 54200, 55555, 67750, 82000, 88888, 108400, 111110, 135500, 177776, 222220, 271000, 277775, 444440, 542000, 555550, 888880, 1111100, 1388875, 2222200, 2777750, 4444400, 5555500, 11111000, 22222000]

約数ペア:

[(1, 22222000), (2, 11111000), (4, 5555500), (5, 4444400), (8, 2777750), (10, 2222200), (16, 1388875), (20, 1111100), (25, 888880), (40, 555550), (41, 542000), (50, 444440), (80, 277775), (82, 271000), (100, 222220), (125, 177776), (164, 135500), (200, 111110), (205, 108400), (250, 88888), (271, 82000), (328, 67750), (400, 55555), (410, 54200), (500, 44444), (542, 41000), (656, 33875), (820, 27100), (1000, 22222), (1025, 21680), (1084, 20500), (1355, 16400), (1640, 13550), (2000, 11111), (2050, 10840), (2168, 10250), (2710, 8200), (3280, 6775), (4100, 5420), (4336, 5125)]