20340100

素因数分解:

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

素因数の和:118

約数の個数: 81

約数和(自身を含む): 49727503

約数和(自身を除く): 29387403

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 121, 164, 205, 220, 242, 275, 410, 451, 484, 550, 605, 820, 902, 1025, 1100, 1210, 1681, 1804, 2050, 2255, 2420, 3025, 3362, 4100, 4510, 4961, 6050, 6724, 8405, 9020, 9922, 11275, 12100, 16810, 18491, 19844, 22550, 24805, 33620, 36982, 42025, 45100, 49610, 73964, 84050, 92455, 99220, 124025, 168100, 184910, 203401, 248050, 369820, 406802, 462275, 496100, 813604, 924550, 1017005, 1849100, 2034010, 4068020, 5085025, 10170050, 20340100]

約数ペア:

[(1, 20340100), (2, 10170050), (4, 5085025), (5, 4068020), (10, 2034010), (11, 1849100), (20, 1017005), (22, 924550), (25, 813604), (41, 496100), (44, 462275), (50, 406802), (55, 369820), (82, 248050), (100, 203401), (110, 184910), (121, 168100), (164, 124025), (205, 99220), (220, 92455), (242, 84050), (275, 73964), (410, 49610), (451, 45100), (484, 42025), (550, 36982), (605, 33620), (820, 24805), (902, 22550), (1025, 19844), (1100, 18491), (1210, 16810), (1681, 12100), (1804, 11275), (2050, 9922), (2255, 9020), (2420, 8405), (3025, 6724), (3362, 6050), (4100, 4961)]