85728705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 155271168

約数和(自身を除く): 69542463

約数列:

[1, 3, 5, 15, 17, 23, 47, 51, 69, 85, 115, 141, 235, 255, 311, 345, 391, 705, 799, 933, 1081, 1173, 1555, 1955, 2397, 3243, 3995, 4665, 5287, 5405, 5865, 7153, 11985, 14617, 15861, 16215, 18377, 21459, 26435, 35765, 43851, 55131, 73085, 79305, 91885, 107295, 121601, 219255, 248489, 275655, 336191, 364803, 608005, 745467, 1008573, 1242445, 1680955, 1824015, 3727335, 5042865, 5715247, 17145741, 28576235, 85728705]

約数ペア:

[(1, 85728705), (3, 28576235), (5, 17145741), (15, 5715247), (17, 5042865), (23, 3727335), (47, 1824015), (51, 1680955), (69, 1242445), (85, 1008573), (115, 745467), (141, 608005), (235, 364803), (255, 336191), (311, 275655), (345, 248489), (391, 219255), (705, 121601), (799, 107295), (933, 91885), (1081, 79305), (1173, 73085), (1555, 55131), (1955, 43851), (2397, 35765), (3243, 26435), (3995, 21459), (4665, 18377), (5287, 16215), (5405, 15861), (5865, 14617), (7153, 11985)]