81032760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 192

約数和(自身を含む): 279002880

約数和(自身を除く): 197970120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 53, 60, 62, 72, 90, 93, 106, 120, 124, 137, 155, 159, 180, 186, 212, 248, 265, 274, 279, 310, 318, 360, 372, 411, 424, 465, 477, 530, 548, 558, 620, 636, 685, 744, 795, 822, 930, 954, 1060, 1096, 1116, 1233, 1240, 1272, 1370, 1395, 1590, 1643, 1644, 1860, 1908, 2055, 2120, 2232, 2385, 2466, 2740, 2790, 3180, 3286, 3288, 3720, 3816, 4110, 4247, 4770, 4929, 4932, 5480, 5580, 6165, 6360, 6572, 7261, 8215, 8220, 8494, 9540, 9858, 9864, 11160, 12330, 12741, 13144, 14522, 14787, 16430, 16440, 16988, 19080, 19716, 21235, 21783, 24645, 24660, 25482, 29044, 29574, 32860, 33976, 36305, 38223, 39432, 42470, 43566, 49290, 49320, 50964, 58088, 59148, 63705, 65349, 65720, 72610, 73935, 76446, 84940, 87132, 98580, 101928, 108915, 118296, 127410, 130698, 145220, 147870, 152892, 169880, 174264, 191115, 197160, 217830, 225091, 254820, 261396, 290440, 295740, 305784, 326745, 382230, 435660, 450182, 509640, 522792, 591480, 653490, 675273, 764460, 871320, 900364, 1125455, 1306980, 1350546, 1528920, 1800728, 2025819, 2250910, 2613960, 2701092, 3376365, 4051638, 4501820, 5402184, 6752730, 8103276, 9003640, 10129095, 13505460, 16206552, 20258190, 27010920, 40516380, 81032760]

約数ペア:

[(1, 81032760), (2, 40516380), (3, 27010920), (4, 20258190), (5, 16206552), (6, 13505460), (8, 10129095), (9, 9003640), (10, 8103276), (12, 6752730), (15, 5402184), (18, 4501820), (20, 4051638), (24, 3376365), (30, 2701092), (31, 2613960), (36, 2250910), (40, 2025819), (45, 1800728), (53, 1528920), (60, 1350546), (62, 1306980), (72, 1125455), (90, 900364), (93, 871320), (106, 764460), (120, 675273), (124, 653490), (137, 591480), (155, 522792), (159, 509640), (180, 450182), (186, 435660), (212, 382230), (248, 326745), (265, 305784), (274, 295740), (279, 290440), (310, 261396), (318, 254820), (360, 225091), (372, 217830), (411, 197160), (424, 191115), (465, 174264), (477, 169880), (530, 152892), (548, 147870), (558, 145220), (620, 130698), (636, 127410), (685, 118296), (744, 108915), (795, 101928), (822, 98580), (930, 87132), (954, 84940), (1060, 76446), (1096, 73935), (1116, 72610), (1233, 65720), (1240, 65349), (1272, 63705), (1370, 59148), (1395, 58088), (1590, 50964), (1643, 49320), (1644, 49290), (1860, 43566), (1908, 42470), (2055, 39432), (2120, 38223), (2232, 36305), (2385, 33976), (2466, 32860), (2740, 29574), (2790, 29044), (3180, 25482), (3286, 24660), (3288, 24645), (3720, 21783), (3816, 21235), (4110, 19716), (4247, 19080), (4770, 16988), (4929, 16440), (4932, 16430), (5480, 14787), (5580, 14522), (6165, 13144), (6360, 12741), (6572, 12330), (7261, 11160), (8215, 9864), (8220, 9858), (8494, 9540)]