128315628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{787}}^1$

素因数の和:1451

約数の個数: 72

約数和(自身を含む): 371734272

約数和(自身を除く): 243418644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 647, 787, 1294, 1574, 1941, 2361, 2588, 3148, 3882, 4529, 4722, 5509, 5823, 7083, 7764, 9058, 9444, 11018, 11646, 13587, 14166, 16527, 18116, 22036, 23292, 27174, 28332, 33054, 40761, 49581, 54348, 66108, 81522, 99162, 163044, 198324, 509189, 1018378, 1527567, 2036756, 3055134, 3564323, 4582701, 6110268, 7128646, 9165402, 10692969, 14257292, 18330804, 21385938, 32078907, 42771876, 64157814, 128315628]

約数ペア:

[(1, 128315628), (2, 64157814), (3, 42771876), (4, 32078907), (6, 21385938), (7, 18330804), (9, 14257292), (12, 10692969), (14, 9165402), (18, 7128646), (21, 6110268), (28, 4582701), (36, 3564323), (42, 3055134), (63, 2036756), (84, 1527567), (126, 1018378), (252, 509189), (647, 198324), (787, 163044), (1294, 99162), (1574, 81522), (1941, 66108), (2361, 54348), (2588, 49581), (3148, 40761), (3882, 33054), (4529, 28332), (4722, 27174), (5509, 23292), (5823, 22036), (7083, 18116), (7764, 16527), (9058, 14166), (9444, 13587), (11018, 11646)]