78855220

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{26111}}^1$

素因数の和:26271

約数の個数: 24

約数和(自身を含む): 166699008

約数和(自身を除く): 87843788

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 26111, 52222, 104444, 130555, 261110, 522220, 3942761, 7885522, 15771044, 19713805, 39427610, 78855220]

約数ペア:

[(1, 78855220), (2, 39427610), (4, 19713805), (5, 15771044), (10, 7885522), (20, 3942761), (151, 522220), (302, 261110), (604, 130555), (755, 104444), (1510, 52222), (3020, 26111)]