20706865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 27688320

約数和(自身を除く): 6981455

約数列:

[1, 5, 19, 37, 43, 95, 137, 185, 215, 685, 703, 817, 1591, 2603, 3515, 4085, 5069, 5891, 7955, 13015, 25345, 29455, 30229, 96311, 111929, 151145, 217967, 481555, 559645, 1089835, 4141373, 20706865]

約数ペア:

[(1, 20706865), (5, 4141373), (19, 1089835), (37, 559645), (43, 481555), (95, 217967), (137, 151145), (185, 111929), (215, 96311), (685, 30229), (703, 29455), (817, 25345), (1591, 13015), (2603, 7955), (3515, 5891), (4085, 5069)]