21143280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2381}}^1$

素因数の和:2434

約数の個数: 80

約数和(自身を含む): 67343904

約数和(自身を除く): 46200624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2381, 2960, 4440, 4762, 7143, 8880, 9524, 11905, 14286, 19048, 23810, 28572, 35715, 38096, 47620, 57144, 71430, 88097, 95240, 114288, 142860, 176194, 190480, 264291, 285720, 352388, 440485, 528582, 571440, 704776, 880970, 1057164, 1321455, 1409552, 1761940, 2114328, 2642910, 3523880, 4228656, 5285820, 7047760, 10571640, 21143280]

約数ペア:

[(1, 21143280), (2, 10571640), (3, 7047760), (4, 5285820), (5, 4228656), (6, 3523880), (8, 2642910), (10, 2114328), (12, 1761940), (15, 1409552), (16, 1321455), (20, 1057164), (24, 880970), (30, 704776), (37, 571440), (40, 528582), (48, 440485), (60, 352388), (74, 285720), (80, 264291), (111, 190480), (120, 176194), (148, 142860), (185, 114288), (222, 95240), (240, 88097), (296, 71430), (370, 57144), (444, 47620), (555, 38096), (592, 35715), (740, 28572), (888, 23810), (1110, 19048), (1480, 14286), (1776, 11905), (2220, 9524), (2381, 8880), (2960, 7143), (4440, 4762)]