645714145

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 897422400

約数和(自身を除く): 251708255

約数列:

[1, 5, 17, 19, 29, 85, 95, 145, 289, 323, 493, 551, 811, 1445, 1615, 2465, 2755, 4055, 5491, 8381, 9367, 13787, 15409, 23519, 27455, 41905, 46835, 68935, 77045, 117595, 159239, 234379, 261953, 399823, 446861, 796195, 1171895, 1309765, 1999115, 2234305, 4453201, 6796991, 7596637, 22266005, 33984955, 37983185, 129142829, 645714145]

約数ペア:

[(1, 645714145), (5, 129142829), (17, 37983185), (19, 33984955), (29, 22266005), (85, 7596637), (95, 6796991), (145, 4453201), (289, 2234305), (323, 1999115), (493, 1309765), (551, 1171895), (811, 796195), (1445, 446861), (1615, 399823), (2465, 261953), (2755, 234379), (4055, 159239), (5491, 117595), (8381, 77045), (9367, 68935), (13787, 46835), (15409, 41905), (23519, 27455)]