68198445

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 139088664

約数和(自身を除く): 70890219

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 157, 197, 245, 315, 441, 471, 591, 735, 785, 985, 1099, 1379, 1413, 1773, 2205, 2355, 2955, 3297, 4137, 5495, 6895, 7065, 7693, 8865, 9653, 9891, 12411, 16485, 20685, 23079, 28959, 30929, 38465, 48265, 49455, 62055, 69237, 86877, 92787, 115395, 144795, 154645, 216503, 278361, 346185, 434385, 463935, 649509, 1082515, 1391805, 1515521, 1948527, 3247545, 4546563, 7577605, 9742635, 13639689, 22732815, 68198445]

約数ペア:

[(1, 68198445), (3, 22732815), (5, 13639689), (7, 9742635), (9, 7577605), (15, 4546563), (21, 3247545), (35, 1948527), (45, 1515521), (49, 1391805), (63, 1082515), (105, 649509), (147, 463935), (157, 434385), (197, 346185), (245, 278361), (315, 216503), (441, 154645), (471, 144795), (591, 115395), (735, 92787), (785, 86877), (985, 69237), (1099, 62055), (1379, 49455), (1413, 48265), (1773, 38465), (2205, 30929), (2355, 28959), (2955, 23079), (3297, 20685), (4137, 16485), (5495, 12411), (6895, 9891), (7065, 9653), (7693, 8865)]