81111240

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10729}}^1$

素因数の和:10756

約数の個数: 128

約数和(自身を含む): 309024000

約数和(自身を除く): 227912760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 10729, 21458, 32187, 42916, 53645, 64374, 75103, 85832, 96561, 107290, 128748, 150206, 160935, 193122, 214580, 225309, 257496, 289683, 300412, 321870, 375515, 386244, 429160, 450618, 482805, 579366, 600824, 643740, 675927, 751030, 772488, 901236, 965610, 1126545, 1158732, 1287480, 1351854, 1448415, 1502060, 1802472, 1931220, 2027781, 2253090, 2317464, 2703708, 2896830, 3004120, 3379635, 3862440, 4055562, 4506180, 5407416, 5793660, 6759270, 8111124, 9012360, 10138905, 11587320, 13518540, 16222248, 20277810, 27037080, 40555620, 81111240]

約数ペア:

[(1, 81111240), (2, 40555620), (3, 27037080), (4, 20277810), (5, 16222248), (6, 13518540), (7, 11587320), (8, 10138905), (9, 9012360), (10, 8111124), (12, 6759270), (14, 5793660), (15, 5407416), (18, 4506180), (20, 4055562), (21, 3862440), (24, 3379635), (27, 3004120), (28, 2896830), (30, 2703708), (35, 2317464), (36, 2253090), (40, 2027781), (42, 1931220), (45, 1802472), (54, 1502060), (56, 1448415), (60, 1351854), (63, 1287480), (70, 1158732), (72, 1126545), (84, 965610), (90, 901236), (105, 772488), (108, 751030), (120, 675927), (126, 643740), (135, 600824), (140, 579366), (168, 482805), (180, 450618), (189, 429160), (210, 386244), (216, 375515), (252, 321870), (270, 300412), (280, 289683), (315, 257496), (360, 225309), (378, 214580), (420, 193122), (504, 160935), (540, 150206), (630, 128748), (756, 107290), (840, 96561), (945, 85832), (1080, 75103), (1260, 64374), (1512, 53645), (1890, 42916), (2520, 32187), (3780, 21458), (7560, 10729)]