20172667460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{2297}}^1$

素因数の和:2538

約数の個数: 144

約数和(自身を含む): 49292651520

約数和(自身を除く): 29119984060

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 191, 209, 220, 242, 380, 382, 418, 484, 605, 764, 836, 955, 1045, 1210, 1910, 2090, 2101, 2297, 2299, 2420, 3629, 3820, 4180, 4202, 4594, 4598, 7258, 8404, 9188, 9196, 10505, 11485, 11495, 14516, 18145, 21010, 22970, 22990, 23111, 25267, 36290, 39919, 42020, 43643, 45940, 45980, 46222, 50534, 72580, 79838, 87286, 92444, 101068, 115555, 126335, 159676, 174572, 199595, 218215, 231110, 252670, 277937, 399190, 436430, 438727, 439109, 462220, 480073, 505340, 555874, 798380, 872860, 877454, 878218, 960146, 1111748, 1389685, 1754908, 1756436, 1920292, 2193635, 2195545, 2400365, 2779370, 4387270, 4391090, 4800730, 4825997, 5280803, 5558740, 8335813, 8774540, 8782180, 9601460, 9651994, 10561606, 16671626, 19303988, 21123212, 24129985, 26404015, 33343252, 41679065, 48259970, 52808030, 53085967, 83358130, 91693943, 96519940, 105616060, 106171934, 166716260, 183387886, 212343868, 265429835, 366775772, 458469715, 530859670, 916939430, 1008633373, 1061719340, 1833878860, 2017266746, 4034533492, 5043166865, 10086333730, 20172667460]

約数ペア:

[(1, 20172667460), (2, 10086333730), (4, 5043166865), (5, 4034533492), (10, 2017266746), (11, 1833878860), (19, 1061719340), (20, 1008633373), (22, 916939430), (38, 530859670), (44, 458469715), (55, 366775772), (76, 265429835), (95, 212343868), (110, 183387886), (121, 166716260), (190, 106171934), (191, 105616060), (209, 96519940), (220, 91693943), (242, 83358130), (380, 53085967), (382, 52808030), (418, 48259970), (484, 41679065), (605, 33343252), (764, 26404015), (836, 24129985), (955, 21123212), (1045, 19303988), (1210, 16671626), (1910, 10561606), (2090, 9651994), (2101, 9601460), (2297, 8782180), (2299, 8774540), (2420, 8335813), (3629, 5558740), (3820, 5280803), (4180, 4825997), (4202, 4800730), (4594, 4391090), (4598, 4387270), (7258, 2779370), (8404, 2400365), (9188, 2195545), (9196, 2193635), (10505, 1920292), (11485, 1756436), (11495, 1754908), (14516, 1389685), (18145, 1111748), (21010, 960146), (22970, 878218), (22990, 877454), (23111, 872860), (25267, 798380), (36290, 555874), (39919, 505340), (42020, 480073), (43643, 462220), (45940, 439109), (45980, 438727), (46222, 436430), (50534, 399190), (72580, 277937), (79838, 252670), (87286, 231110), (92444, 218215), (101068, 199595), (115555, 174572), (126335, 159676)]