78829220

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{10979}}^1$

素因数の和:11347

約数の個数: 24

約数和(自身を含む): 166017600

約数和(自身を除く): 87188380

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 10979, 21958, 43916, 54895, 109790, 219580, 3941461, 7882922, 15765844, 19707305, 39414610, 78829220]

約数ペア:

[(1, 78829220), (2, 39414610), (4, 19707305), (5, 15765844), (10, 7882922), (20, 3941461), (359, 219580), (718, 109790), (1436, 54895), (1795, 43916), (3590, 21958), (7180, 10979)]