81343256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 169036800

約数和(自身を除く): 87693544

約数列:

[1, 2, 4, 8, 19, 31, 38, 61, 62, 76, 122, 124, 152, 244, 248, 283, 488, 566, 589, 1132, 1159, 1178, 1891, 2264, 2318, 2356, 3782, 4636, 4712, 5377, 7564, 8773, 9272, 10754, 15128, 17263, 17546, 21508, 34526, 35092, 35929, 43016, 69052, 70184, 71858, 138104, 143716, 166687, 287432, 327997, 333374, 535153, 655994, 666748, 1070306, 1311988, 1333496, 2140612, 2623976, 4281224, 10167907, 20335814, 40671628, 81343256]

約数ペア:

[(1, 81343256), (2, 40671628), (4, 20335814), (8, 10167907), (19, 4281224), (31, 2623976), (38, 2140612), (61, 1333496), (62, 1311988), (76, 1070306), (122, 666748), (124, 655994), (152, 535153), (244, 333374), (248, 327997), (283, 287432), (488, 166687), (566, 143716), (589, 138104), (1132, 71858), (1159, 70184), (1178, 69052), (1891, 43016), (2264, 35929), (2318, 35092), (2356, 34526), (3782, 21508), (4636, 17546), (4712, 17263), (5377, 15128), (7564, 10754), (8773, 9272)]