81504360

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10781}}^1$

素因数の和:10808

約数の個数: 128

約数和(自身を含む): 310521600

約数和(自身を除く): 229017240

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, 10781, 21562, 32343, 43124, 53905, 64686, 75467, 86248, 97029, 107810, 129372, 150934, 161715, 194058, 215620, 226401, 258744, 291087, 301868, 323430, 377335, 388116, 431240, 452802, 485145, 582174, 603736, 646860, 679203, 754670, 776232, 905604, 970290, 1132005, 1164348, 1293720, 1358406, 1455435, 1509340, 1811208, 1940580, 2037609, 2264010, 2328696, 2716812, 2910870, 3018680, 3396015, 3881160, 4075218, 4528020, 5433624, 5821740, 6792030, 8150436, 9056040, 10188045, 11643480, 13584060, 16300872, 20376090, 27168120, 40752180, 81504360]

約数ペア:

[(1, 81504360), (2, 40752180), (3, 27168120), (4, 20376090), (5, 16300872), (6, 13584060), (7, 11643480), (8, 10188045), (9, 9056040), (10, 8150436), (12, 6792030), (14, 5821740), (15, 5433624), (18, 4528020), (20, 4075218), (21, 3881160), (24, 3396015), (27, 3018680), (28, 2910870), (30, 2716812), (35, 2328696), (36, 2264010), (40, 2037609), (42, 1940580), (45, 1811208), (54, 1509340), (56, 1455435), (60, 1358406), (63, 1293720), (70, 1164348), (72, 1132005), (84, 970290), (90, 905604), (105, 776232), (108, 754670), (120, 679203), (126, 646860), (135, 603736), (140, 582174), (168, 485145), (180, 452802), (189, 431240), (210, 388116), (216, 377335), (252, 323430), (270, 301868), (280, 291087), (315, 258744), (360, 226401), (378, 215620), (420, 194058), (504, 161715), (540, 150934), (630, 129372), (756, 107810), (840, 97029), (945, 86248), (1080, 75467), (1260, 64686), (1512, 53905), (1890, 43124), (2520, 32343), (3780, 21562), (7560, 10781)]