81437760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{28277}}^1$

素因数の和:28300

約数の個数: 84

約数和(自身を含む): 280121868

約数和(自身を除く): 198684108

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 28277, 56554, 84831, 113108, 141385, 169662, 226216, 254493, 282770, 339324, 424155, 452432, 508986, 565540, 678648, 848310, 904864, 1017972, 1131080, 1272465, 1357296, 1696620, 1809728, 2035944, 2262160, 2544930, 2714592, 3393240, 4071888, 4524320, 5089860, 5429184, 6786480, 8143776, 9048640, 10179720, 13572960, 16287552, 20359440, 27145920, 40718880, 81437760]

約数ペア:

[(1, 81437760), (2, 40718880), (3, 27145920), (4, 20359440), (5, 16287552), (6, 13572960), (8, 10179720), (9, 9048640), (10, 8143776), (12, 6786480), (15, 5429184), (16, 5089860), (18, 4524320), (20, 4071888), (24, 3393240), (30, 2714592), (32, 2544930), (36, 2262160), (40, 2035944), (45, 1809728), (48, 1696620), (60, 1357296), (64, 1272465), (72, 1131080), (80, 1017972), (90, 904864), (96, 848310), (120, 678648), (144, 565540), (160, 508986), (180, 452432), (192, 424155), (240, 339324), (288, 282770), (320, 254493), (360, 226216), (480, 169662), (576, 141385), (720, 113108), (960, 84831), (1440, 56554), (2880, 28277)]