68938760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{156679}}^1$

素因数の和:156701

約数の個数: 32

約数和(自身を含む): 169214400

約数和(自身を除く): 100275640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 156679, 313358, 626716, 783395, 1253432, 1566790, 1723469, 3133580, 3446938, 6267160, 6893876, 8617345, 13787752, 17234690, 34469380, 68938760]

約数ペア:

[(1, 68938760), (2, 34469380), (4, 17234690), (5, 13787752), (8, 8617345), (10, 6893876), (11, 6267160), (20, 3446938), (22, 3133580), (40, 1723469), (44, 1566790), (55, 1253432), (88, 783395), (110, 626716), (220, 313358), (440, 156679)]