4068020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^2$

素因数の和:113

約数の個数: 54

約数和(自身を含む): 9624678

約数和(自身を除く): 5556658

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 410, 451, 484, 605, 820, 902, 1210, 1681, 1804, 2255, 2420, 3362, 4510, 4961, 6724, 8405, 9020, 9922, 16810, 18491, 19844, 24805, 33620, 36982, 49610, 73964, 92455, 99220, 184910, 203401, 369820, 406802, 813604, 1017005, 2034010, 4068020]

約数ペア:

[(1, 4068020), (2, 2034010), (4, 1017005), (5, 813604), (10, 406802), (11, 369820), (20, 203401), (22, 184910), (41, 99220), (44, 92455), (55, 73964), (82, 49610), (110, 36982), (121, 33620), (164, 24805), (205, 19844), (220, 18491), (242, 16810), (410, 9922), (451, 9020), (484, 8405), (605, 6724), (820, 4961), (902, 4510), (1210, 3362), (1681, 2420), (1804, 2255)]