209225720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:933

約数の個数: 128

約数和(自身を含む): 559872000

約数和(自身を除く): 350646280

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 29, 38, 40, 44, 55, 58, 76, 88, 95, 110, 116, 145, 152, 190, 209, 220, 232, 290, 319, 380, 418, 440, 551, 580, 638, 760, 836, 863, 1045, 1102, 1160, 1276, 1595, 1672, 1726, 2090, 2204, 2552, 2755, 3190, 3452, 4180, 4315, 4408, 5510, 6061, 6380, 6904, 8360, 8630, 9493, 11020, 12122, 12760, 16397, 17260, 18986, 22040, 24244, 25027, 30305, 32794, 34520, 37972, 47465, 48488, 50054, 60610, 65588, 75944, 81985, 94930, 100108, 121220, 125135, 131176, 163970, 180367, 189860, 200216, 242440, 250270, 275297, 327940, 360734, 379720, 475513, 500540, 550594, 655880, 721468, 901835, 951026, 1001080, 1101188, 1376485, 1442936, 1803670, 1902052, 2202376, 2377565, 2752970, 3607340, 3804104, 4755130, 5230643, 5505940, 7214680, 9510260, 10461286, 11011880, 19020520, 20922572, 26153215, 41845144, 52306430, 104612860, 209225720]

約数ペア:

[(1, 209225720), (2, 104612860), (4, 52306430), (5, 41845144), (8, 26153215), (10, 20922572), (11, 19020520), (19, 11011880), (20, 10461286), (22, 9510260), (29, 7214680), (38, 5505940), (40, 5230643), (44, 4755130), (55, 3804104), (58, 3607340), (76, 2752970), (88, 2377565), (95, 2202376), (110, 1902052), (116, 1803670), (145, 1442936), (152, 1376485), (190, 1101188), (209, 1001080), (220, 951026), (232, 901835), (290, 721468), (319, 655880), (380, 550594), (418, 500540), (440, 475513), (551, 379720), (580, 360734), (638, 327940), (760, 275297), (836, 250270), (863, 242440), (1045, 200216), (1102, 189860), (1160, 180367), (1276, 163970), (1595, 131176), (1672, 125135), (1726, 121220), (2090, 100108), (2204, 94930), (2552, 81985), (2755, 75944), (3190, 65588), (3452, 60610), (4180, 50054), (4315, 48488), (4408, 47465), (5510, 37972), (6061, 34520), (6380, 32794), (6904, 30305), (8360, 25027), (8630, 24244), (9493, 22040), (11020, 18986), (12122, 17260), (12760, 16397)]