156720501

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 288541440

約数和(自身を除く): 131820939

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 71, 81, 119, 153, 189, 213, 229, 357, 459, 497, 567, 639, 687, 1071, 1207, 1377, 1491, 1603, 1917, 2061, 3213, 3621, 3893, 4473, 4809, 5751, 6183, 8449, 9639, 10863, 11679, 13419, 14427, 16259, 18549, 25347, 27251, 32589, 35037, 40257, 43281, 48777, 76041, 81753, 97767, 105111, 113813, 129843, 146331, 228123, 245259, 276403, 315333, 341439, 438993, 684369, 735777, 829209, 1024317, 1316979, 1934821, 2207331, 2487627, 3072951, 5804463, 7462881, 9218853, 17413389, 22388643, 52240167, 156720501]

約数ペア:

[(1, 156720501), (3, 52240167), (7, 22388643), (9, 17413389), (17, 9218853), (21, 7462881), (27, 5804463), (51, 3072951), (63, 2487627), (71, 2207331), (81, 1934821), (119, 1316979), (153, 1024317), (189, 829209), (213, 735777), (229, 684369), (357, 438993), (459, 341439), (497, 315333), (567, 276403), (639, 245259), (687, 228123), (1071, 146331), (1207, 129843), (1377, 113813), (1491, 105111), (1603, 97767), (1917, 81753), (2061, 76041), (3213, 48777), (3621, 43281), (3893, 40257), (4473, 35037), (4809, 32589), (5751, 27251), (6183, 25347), (8449, 18549), (9639, 16259), (10863, 14427), (11679, 13419)]