20681760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3917}}^1$

素因数の和:3946

約数の個数: 96

約数和(自身を含む): 71088192

約数和(自身を除く): 50406432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 3917, 5280, 7834, 11751, 15668, 19585, 23502, 31336, 39170, 43087, 47004, 58755, 62672, 78340, 86174, 94008, 117510, 125344, 129261, 156680, 172348, 188016, 215435, 235020, 258522, 313360, 344696, 376032, 430870, 470040, 517044, 626720, 646305, 689392, 861740, 940080, 1034088, 1292610, 1378784, 1723480, 1880160, 2068176, 2585220, 3446960, 4136352, 5170440, 6893920, 10340880, 20681760]

約数ペア:

[(1, 20681760), (2, 10340880), (3, 6893920), (4, 5170440), (5, 4136352), (6, 3446960), (8, 2585220), (10, 2068176), (11, 1880160), (12, 1723480), (15, 1378784), (16, 1292610), (20, 1034088), (22, 940080), (24, 861740), (30, 689392), (32, 646305), (33, 626720), (40, 517044), (44, 470040), (48, 430870), (55, 376032), (60, 344696), (66, 313360), (80, 258522), (88, 235020), (96, 215435), (110, 188016), (120, 172348), (132, 156680), (160, 129261), (165, 125344), (176, 117510), (220, 94008), (240, 86174), (264, 78340), (330, 62672), (352, 58755), (440, 47004), (480, 43087), (528, 39170), (660, 31336), (880, 23502), (1056, 19585), (1320, 15668), (1760, 11751), (2640, 7834), (3917, 5280)]