81311760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3643}}^1$

素因数の和:3693

約数の個数: 120

約数和(自身を含む): 281958144

約数和(自身を除く): 200646384

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3643, 3720, 4464, 5580, 7286, 7440, 10929, 11160, 14572, 18215, 21858, 22320, 29144, 32787, 36430, 43716, 54645, 58288, 65574, 72860, 87432, 109290, 112933, 131148, 145720, 163935, 174864, 218580, 225866, 262296, 291440, 327870, 338799, 437160, 451732, 524592, 564665, 655740, 677598, 874320, 903464, 1016397, 1129330, 1311480, 1355196, 1693995, 1806928, 2032794, 2258660, 2622960, 2710392, 3387990, 4065588, 4517320, 5081985, 5420784, 6775980, 8131176, 9034640, 10163970, 13551960, 16262352, 20327940, 27103920, 40655880, 81311760]

約数ペア:

[(1, 81311760), (2, 40655880), (3, 27103920), (4, 20327940), (5, 16262352), (6, 13551960), (8, 10163970), (9, 9034640), (10, 8131176), (12, 6775980), (15, 5420784), (16, 5081985), (18, 4517320), (20, 4065588), (24, 3387990), (30, 2710392), (31, 2622960), (36, 2258660), (40, 2032794), (45, 1806928), (48, 1693995), (60, 1355196), (62, 1311480), (72, 1129330), (80, 1016397), (90, 903464), (93, 874320), (120, 677598), (124, 655740), (144, 564665), (155, 524592), (180, 451732), (186, 437160), (240, 338799), (248, 327870), (279, 291440), (310, 262296), (360, 225866), (372, 218580), (465, 174864), (496, 163935), (558, 145720), (620, 131148), (720, 112933), (744, 109290), (930, 87432), (1116, 72860), (1240, 65574), (1395, 58288), (1488, 54645), (1860, 43716), (2232, 36430), (2480, 32787), (2790, 29144), (3643, 22320), (3720, 21858), (4464, 18215), (5580, 14572), (7286, 11160), (7440, 10929)]