81261556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 154322560

約数和(自身を除く): 73061004

約数列:

[1, 2, 4, 19, 38, 73, 76, 97, 146, 151, 194, 292, 302, 388, 604, 1387, 1843, 2774, 2869, 3686, 5548, 5738, 7081, 7372, 11023, 11476, 14162, 14647, 22046, 28324, 29294, 44092, 58588, 134539, 209437, 269078, 278293, 418874, 538156, 556586, 837748, 1069231, 1113172, 2138462, 4276924, 20315389, 40630778, 81261556]

約数ペア:

[(1, 81261556), (2, 40630778), (4, 20315389), (19, 4276924), (38, 2138462), (73, 1113172), (76, 1069231), (97, 837748), (146, 556586), (151, 538156), (194, 418874), (292, 278293), (302, 269078), (388, 209437), (604, 134539), (1387, 58588), (1843, 44092), (2774, 29294), (2869, 28324), (3686, 22046), (5548, 14647), (5738, 14162), (7081, 11476), (7372, 11023)]