68139280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{77431}}^1$

素因数の和:77455

約数の個数: 40

約数和(自身を含む): 172828224

約数和(自身を除く): 104688944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 77431, 154862, 309724, 387155, 619448, 774310, 851741, 1238896, 1548620, 1703482, 3097240, 3406964, 4258705, 6194480, 6813928, 8517410, 13627856, 17034820, 34069640, 68139280]

約数ペア:

[(1, 68139280), (2, 34069640), (4, 17034820), (5, 13627856), (8, 8517410), (10, 6813928), (11, 6194480), (16, 4258705), (20, 3406964), (22, 3097240), (40, 1703482), (44, 1548620), (55, 1238896), (80, 851741), (88, 774310), (110, 619448), (176, 387155), (220, 309724), (440, 154862), (880, 77431)]