78918020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{207679}}^1$

素因数の和:207707

約数の個数: 24

約数和(自身を含む): 174451200

約数和(自身を除く): 95533180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 207679, 415358, 830716, 1038395, 2076790, 3945901, 4153580, 7891802, 15783604, 19729505, 39459010, 78918020]

約数ペア:

[(1, 78918020), (2, 39459010), (4, 19729505), (5, 15783604), (10, 7891802), (19, 4153580), (20, 3945901), (38, 2076790), (76, 1038395), (95, 830716), (190, 415358), (380, 207679)]