399478145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{6719}}^1$

素因数の和:6805

約数の個数: 32

約数和(自身を含む): 557383680

約数和(自身を除く): 157905535

約数列:

[1, 5, 11, 23, 47, 55, 115, 235, 253, 517, 1081, 1265, 2585, 5405, 6719, 11891, 33595, 59455, 73909, 154537, 315793, 369545, 772685, 1578965, 1699907, 3473723, 7263239, 8499535, 17368615, 36316195, 79895629, 399478145]

約数ペア:

[(1, 399478145), (5, 79895629), (11, 36316195), (23, 17368615), (47, 8499535), (55, 7263239), (115, 3473723), (235, 1699907), (253, 1578965), (517, 772685), (1081, 369545), (1265, 315793), (2585, 154537), (5405, 73909), (6719, 59455), (11891, 33595)]