21605360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:1002

約数の個数: 80

約数和(自身を含む): 58871232

約数和(自身を除く): 37265872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 941, 1148, 1435, 1640, 1882, 2296, 2870, 3280, 3764, 4592, 4705, 5740, 6587, 7528, 9410, 11480, 13174, 15056, 18820, 22960, 26348, 32935, 37640, 38581, 52696, 65870, 75280, 77162, 105392, 131740, 154324, 192905, 263480, 270067, 308648, 385810, 526960, 540134, 617296, 771620, 1080268, 1350335, 1543240, 2160536, 2700670, 3086480, 4321072, 5401340, 10802680, 21605360]

約数ペア:

[(1, 21605360), (2, 10802680), (4, 5401340), (5, 4321072), (7, 3086480), (8, 2700670), (10, 2160536), (14, 1543240), (16, 1350335), (20, 1080268), (28, 771620), (35, 617296), (40, 540134), (41, 526960), (56, 385810), (70, 308648), (80, 270067), (82, 263480), (112, 192905), (140, 154324), (164, 131740), (205, 105392), (280, 77162), (287, 75280), (328, 65870), (410, 52696), (560, 38581), (574, 37640), (656, 32935), (820, 26348), (941, 22960), (1148, 18820), (1435, 15056), (1640, 13174), (1882, 11480), (2296, 9410), (2870, 7528), (3280, 6587), (3764, 5740), (4592, 4705)]