81683760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10979}}^1$

素因数の和:11026

約数の個数: 80

約数和(自身を含む): 261411840

約数和(自身を除く): 179728080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 10979, 21958, 32937, 43916, 54895, 65874, 87832, 109790, 131748, 164685, 175664, 219580, 263496, 329370, 340349, 439160, 526992, 658740, 680698, 878320, 1021047, 1317480, 1361396, 1701745, 2042094, 2634960, 2722792, 3403490, 4084188, 5105235, 5445584, 6806980, 8168376, 10210470, 13613960, 16336752, 20420940, 27227920, 40841880, 81683760]

約数ペア:

[(1, 81683760), (2, 40841880), (3, 27227920), (4, 20420940), (5, 16336752), (6, 13613960), (8, 10210470), (10, 8168376), (12, 6806980), (15, 5445584), (16, 5105235), (20, 4084188), (24, 3403490), (30, 2722792), (31, 2634960), (40, 2042094), (48, 1701745), (60, 1361396), (62, 1317480), (80, 1021047), (93, 878320), (120, 680698), (124, 658740), (155, 526992), (186, 439160), (240, 340349), (248, 329370), (310, 263496), (372, 219580), (465, 175664), (496, 164685), (620, 131748), (744, 109790), (930, 87832), (1240, 65874), (1488, 54895), (1860, 43916), (2480, 32937), (3720, 21958), (7440, 10979)]