20964240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2647}}^1$

素因数の和:2677

約数の個数: 120

約数和(自身を含む): 76834368

約数和(自身を除く): 55870128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2647, 3960, 5294, 7920, 7941, 10588, 13235, 15882, 21176, 23823, 26470, 29117, 31764, 39705, 42352, 47646, 52940, 58234, 63528, 79410, 87351, 95292, 105880, 116468, 119115, 127056, 145585, 158820, 174702, 190584, 211760, 232936, 238230, 262053, 291170, 317640, 349404, 381168, 436755, 465872, 476460, 524106, 582340, 635280, 698808, 873510, 952920, 1048212, 1164680, 1310265, 1397616, 1747020, 1905840, 2096424, 2329360, 2620530, 3494040, 4192848, 5241060, 6988080, 10482120, 20964240]

約数ペア:

[(1, 20964240), (2, 10482120), (3, 6988080), (4, 5241060), (5, 4192848), (6, 3494040), (8, 2620530), (9, 2329360), (10, 2096424), (11, 1905840), (12, 1747020), (15, 1397616), (16, 1310265), (18, 1164680), (20, 1048212), (22, 952920), (24, 873510), (30, 698808), (33, 635280), (36, 582340), (40, 524106), (44, 476460), (45, 465872), (48, 436755), (55, 381168), (60, 349404), (66, 317640), (72, 291170), (80, 262053), (88, 238230), (90, 232936), (99, 211760), (110, 190584), (120, 174702), (132, 158820), (144, 145585), (165, 127056), (176, 119115), (180, 116468), (198, 105880), (220, 95292), (240, 87351), (264, 79410), (330, 63528), (360, 58234), (396, 52940), (440, 47646), (495, 42352), (528, 39705), (660, 31764), (720, 29117), (792, 26470), (880, 23823), (990, 21176), (1320, 15882), (1584, 13235), (1980, 10588), (2640, 7941), (2647, 7920), (3960, 5294)]