181440

素因数分解:

$2^6\times 3^4\times 5^1\times 7^1$

素因数の和:36

約数の個数: 140

約数和(自身を含む): 737616

約数和(自身を除く): 556176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 324, 336, 360, 378, 405, 420, 432, 448, 480, 504, 540, 560, 567, 576, 630, 648, 672, 720, 756, 810, 840, 864, 945, 960, 1008, 1080, 1120, 1134, 1260, 1296, 1344, 1440, 1512, 1620, 1680, 1728, 1890, 2016, 2160, 2240, 2268, 2520, 2592, 2835, 2880, 3024, 3240, 3360, 3780, 4032, 4320, 4536, 5040, 5184, 5670, 6048, 6480, 6720, 7560, 8640, 9072, 10080, 11340, 12096, 12960, 15120, 18144, 20160, 22680, 25920, 30240, 36288, 45360, 60480, 90720, 181440]

約数ペア:

[(1, 181440), (2, 90720), (3, 60480), (4, 45360), (5, 36288), (6, 30240), (7, 25920), (8, 22680), (9, 20160), (10, 18144), (12, 15120), (14, 12960), (15, 12096), (16, 11340), (18, 10080), (20, 9072), (21, 8640), (24, 7560), (27, 6720), (28, 6480), (30, 6048), (32, 5670), (35, 5184), (36, 5040), (40, 4536), (42, 4320), (45, 4032), (48, 3780), (54, 3360), (56, 3240), (60, 3024), (63, 2880), (64, 2835), (70, 2592), (72, 2520), (80, 2268), (81, 2240), (84, 2160), (90, 2016), (96, 1890), (105, 1728), (108, 1680), (112, 1620), (120, 1512), (126, 1440), (135, 1344), (140, 1296), (144, 1260), (160, 1134), (162, 1120), (168, 1080), (180, 1008), (189, 960), (192, 945), (210, 864), (216, 840), (224, 810), (240, 756), (252, 720), (270, 672), (280, 648), (288, 630), (315, 576), (320, 567), (324, 560), (336, 540), (360, 504), (378, 480), (405, 448), (420, 432)]