20640156

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{90527}}^1$

素因数の和:90553

約数の個数: 24

約数和(自身を含む): 50695680

約数和(自身を除く): 30055524

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 90527, 181054, 271581, 362108, 543162, 1086324, 1720013, 3440026, 5160039, 6880052, 10320078, 20640156]

約数ペア:

[(1, 20640156), (2, 10320078), (3, 6880052), (4, 5160039), (6, 3440026), (12, 1720013), (19, 1086324), (38, 543162), (57, 362108), (76, 271581), (114, 181054), (228, 90527)]