68978455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 109670400

約数和(自身を除く): 40691945

約数列:

[1, 5, 7, 13, 19, 35, 65, 79, 91, 95, 101, 133, 247, 395, 455, 505, 553, 665, 707, 1027, 1235, 1313, 1501, 1729, 1919, 2765, 3535, 5135, 6565, 7189, 7505, 7979, 8645, 9191, 9595, 10507, 13433, 19513, 24947, 35945, 39895, 45955, 52535, 55853, 67165, 97565, 103727, 124735, 136591, 151601, 174629, 279265, 518635, 682955, 726089, 758005, 873145, 1061207, 1970813, 3630445, 5306035, 9854065, 13795691, 68978455]

約数ペア:

[(1, 68978455), (5, 13795691), (7, 9854065), (13, 5306035), (19, 3630445), (35, 1970813), (65, 1061207), (79, 873145), (91, 758005), (95, 726089), (101, 682955), (133, 518635), (247, 279265), (395, 174629), (455, 151601), (505, 136591), (553, 124735), (665, 103727), (707, 97565), (1027, 67165), (1235, 55853), (1313, 52535), (1501, 45955), (1729, 39895), (1919, 35945), (2765, 24947), (3535, 19513), (5135, 13433), (6565, 10507), (7189, 9595), (7505, 9191), (7979, 8645)]