90720

素因数分解:

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

素因数の和:34

約数の個数: 120

約数和(自身を含む): 365904

約数和(自身を除く): 275184

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, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3780, 4320, 4536, 5040, 5670, 6048, 6480, 7560, 9072, 10080, 11340, 12960, 15120, 18144, 22680, 30240, 45360, 90720]

約数ペア:

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