31380856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15881}}^1$

素因数の和:15919

約数の個数: 32

約数和(自身を含む): 66704400

約数和(自身を除く): 35323544

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 15881, 31762, 63524, 127048, 206453, 301739, 412906, 603478, 825812, 1206956, 1651624, 2413912, 3922607, 7845214, 15690428, 31380856]

約数ペア:

[(1, 31380856), (2, 15690428), (4, 7845214), (8, 3922607), (13, 2413912), (19, 1651624), (26, 1206956), (38, 825812), (52, 603478), (76, 412906), (104, 301739), (152, 206453), (247, 127048), (494, 63524), (988, 31762), (1976, 15881)]