81428395

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 108864000

約数和(自身を除く): 27435605

約数列:

[1, 5, 19, 23, 83, 95, 115, 415, 437, 449, 1577, 1909, 2185, 2245, 7885, 8531, 9545, 10327, 36271, 37267, 42655, 51635, 181355, 186335, 196213, 708073, 857141, 981065, 3540365, 4285705, 16285679, 81428395]

約数ペア:

[(1, 81428395), (5, 16285679), (19, 4285705), (23, 3540365), (83, 981065), (95, 857141), (115, 708073), (415, 196213), (437, 186335), (449, 181355), (1577, 51635), (1909, 42655), (2185, 37267), (2245, 36271), (7885, 10327), (8531, 9545)]