2019955960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{443}}^1$

素因数の和:749

約数の個数: 128

約数和(自身を含む): 5105928960

約数和(自身を除く): 3085973000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 241, 344, 430, 440, 443, 473, 482, 860, 886, 946, 964, 1205, 1720, 1772, 1892, 1928, 2215, 2365, 2410, 2651, 3544, 3784, 4430, 4730, 4820, 4873, 5302, 8860, 9460, 9640, 9746, 10363, 10604, 13255, 17720, 18920, 19049, 19492, 20726, 21208, 24365, 26510, 38098, 38984, 41452, 48730, 51815, 53020, 76196, 82904, 95245, 97460, 103630, 106040, 106763, 113993, 152392, 190490, 194920, 207260, 209539, 213526, 227986, 380980, 414520, 419078, 427052, 455972, 533815, 569965, 761960, 838156, 854104, 911944, 1047695, 1067630, 1139930, 1174393, 1676312, 2095390, 2135260, 2279860, 2348786, 4190780, 4270520, 4559720, 4590809, 4697572, 5871965, 8381560, 9181618, 9395144, 11743930, 18363236, 22954045, 23487860, 36726472, 45908090, 46975720, 50498899, 91816180, 100997798, 183632360, 201995596, 252494495, 403991192, 504988990, 1009977980, 2019955960]

約数ペア:

[(1, 2019955960), (2, 1009977980), (4, 504988990), (5, 403991192), (8, 252494495), (10, 201995596), (11, 183632360), (20, 100997798), (22, 91816180), (40, 50498899), (43, 46975720), (44, 45908090), (55, 36726472), (86, 23487860), (88, 22954045), (110, 18363236), (172, 11743930), (215, 9395144), (220, 9181618), (241, 8381560), (344, 5871965), (430, 4697572), (440, 4590809), (443, 4559720), (473, 4270520), (482, 4190780), (860, 2348786), (886, 2279860), (946, 2135260), (964, 2095390), (1205, 1676312), (1720, 1174393), (1772, 1139930), (1892, 1067630), (1928, 1047695), (2215, 911944), (2365, 854104), (2410, 838156), (2651, 761960), (3544, 569965), (3784, 533815), (4430, 455972), (4730, 427052), (4820, 419078), (4873, 414520), (5302, 380980), (8860, 227986), (9460, 213526), (9640, 209539), (9746, 207260), (10363, 194920), (10604, 190490), (13255, 152392), (17720, 113993), (18920, 106763), (19049, 106040), (19492, 103630), (20726, 97460), (21208, 95245), (24365, 82904), (26510, 76196), (38098, 53020), (38984, 51815), (41452, 48730)]