78640639

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1097}}^1$

素因数の和:1148

約数の個数: 32

約数和(自身を含む): 105408000

約数和(自身を除く): 26767361

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 343, 539, 931, 1097, 1463, 3773, 6517, 7679, 10241, 12067, 20843, 53753, 71687, 84469, 145901, 229273, 376271, 591283, 1021307, 1604911, 4138981, 7149149, 11234377, 78640639]

約数ペア:

[(1, 78640639), (7, 11234377), (11, 7149149), (19, 4138981), (49, 1604911), (77, 1021307), (133, 591283), (209, 376271), (343, 229273), (539, 145901), (931, 84469), (1097, 71687), (1463, 53753), (3773, 20843), (6517, 12067), (7679, 10241)]