210003970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1107

約数の個数: 48

約数和(自身を含む): 418078584

約数和(自身を除く): 208074614

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 197, 242, 394, 605, 881, 985, 1210, 1762, 1970, 2167, 4334, 4405, 8810, 9691, 10835, 19382, 21670, 23837, 47674, 48455, 96910, 106601, 119185, 173557, 213202, 238370, 347114, 533005, 867785, 1066010, 1735570, 1909127, 3818254, 9545635, 19091270, 21000397, 42000794, 105001985, 210003970]

約数ペア:

[(1, 210003970), (2, 105001985), (5, 42000794), (10, 21000397), (11, 19091270), (22, 9545635), (55, 3818254), (110, 1909127), (121, 1735570), (197, 1066010), (242, 867785), (394, 533005), (605, 347114), (881, 238370), (985, 213202), (1210, 173557), (1762, 119185), (1970, 106601), (2167, 96910), (4334, 48455), (4405, 47674), (8810, 23837), (9691, 21670), (10835, 19382)]