2018011888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:830

約数の個数: 80

約数和(自身を含む): 4218480000

約数和(自身を除く): 2200468112

約数列:

[1, 2, 4, 8, 16, 19, 38, 53, 76, 106, 152, 212, 251, 304, 424, 499, 502, 848, 998, 1004, 1007, 1996, 2008, 2014, 3992, 4016, 4028, 4769, 7984, 8056, 9481, 9538, 13303, 16112, 18962, 19076, 26447, 26606, 37924, 38152, 52894, 53212, 75848, 76304, 105788, 106424, 125249, 151696, 211576, 212848, 250498, 252757, 423152, 500996, 502493, 505514, 1001992, 1004986, 1011028, 2003984, 2009972, 2022056, 2379731, 4019944, 4044112, 4759462, 6638197, 8039888, 9518924, 13276394, 19037848, 26552788, 38075696, 53105576, 106211152, 126125743, 252251486, 504502972, 1009005944, 2018011888]

約数ペア:

[(1, 2018011888), (2, 1009005944), (4, 504502972), (8, 252251486), (16, 126125743), (19, 106211152), (38, 53105576), (53, 38075696), (76, 26552788), (106, 19037848), (152, 13276394), (212, 9518924), (251, 8039888), (304, 6638197), (424, 4759462), (499, 4044112), (502, 4019944), (848, 2379731), (998, 2022056), (1004, 2009972), (1007, 2003984), (1996, 1011028), (2008, 1004986), (2014, 1001992), (3992, 505514), (4016, 502493), (4028, 500996), (4769, 423152), (7984, 252757), (8056, 250498), (9481, 212848), (9538, 211576), (13303, 151696), (16112, 125249), (18962, 106424), (19076, 105788), (26447, 76304), (26606, 75848), (37924, 53212), (38152, 52894)]