78229780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{20479}}^1$

素因数の和:20679

約数の個数: 24

約数和(自身を含む): 165150720

約数和(自身を除く): 86920940

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 20479, 40958, 81916, 102395, 204790, 409580, 3911489, 7822978, 15645956, 19557445, 39114890, 78229780]

約数ペア:

[(1, 78229780), (2, 39114890), (4, 19557445), (5, 15645956), (10, 7822978), (20, 3911489), (191, 409580), (382, 204790), (764, 102395), (955, 81916), (1910, 40958), (3820, 20479)]