20777165

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 28235520

約数和(自身を除く): 7458355

約数列:

[1, 5, 19, 23, 37, 95, 115, 185, 257, 437, 703, 851, 1285, 2185, 3515, 4255, 4883, 5911, 9509, 16169, 24415, 29555, 47545, 80845, 112309, 180671, 218707, 561545, 903355, 1093535, 4155433, 20777165]

約数ペア:

[(1, 20777165), (5, 4155433), (19, 1093535), (23, 903355), (37, 561545), (95, 218707), (115, 180671), (185, 112309), (257, 80845), (437, 47545), (703, 29555), (851, 24415), (1285, 16169), (2185, 9509), (3515, 5911), (4255, 4883)]