204645760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:780

約数の個数: 128

約数和(自身を含む): 547495200

約数和(自身を除く): 342849440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 320, 328, 352, 410, 440, 451, 640, 656, 704, 709, 820, 880, 902, 1312, 1408, 1418, 1640, 1760, 1804, 2255, 2624, 2836, 3280, 3520, 3545, 3608, 4510, 5248, 5672, 6560, 7040, 7090, 7216, 7799, 9020, 11344, 13120, 14180, 14432, 15598, 18040, 22688, 26240, 28360, 28864, 29069, 31196, 36080, 38995, 45376, 56720, 57728, 58138, 62392, 72160, 77990, 90752, 113440, 116276, 124784, 144320, 145345, 155980, 226880, 232552, 249568, 288640, 290690, 311960, 319759, 453760, 465104, 499136, 581380, 623920, 639518, 930208, 998272, 1162760, 1247840, 1279036, 1598795, 1860416, 2325520, 2495680, 2558072, 3197590, 3720832, 4651040, 4991360, 5116144, 6395180, 9302080, 10232288, 12790360, 18604160, 20464576, 25580720, 40929152, 51161440, 102322880, 204645760]

約数ペア:

[(1, 204645760), (2, 102322880), (4, 51161440), (5, 40929152), (8, 25580720), (10, 20464576), (11, 18604160), (16, 12790360), (20, 10232288), (22, 9302080), (32, 6395180), (40, 5116144), (41, 4991360), (44, 4651040), (55, 3720832), (64, 3197590), (80, 2558072), (82, 2495680), (88, 2325520), (110, 1860416), (128, 1598795), (160, 1279036), (164, 1247840), (176, 1162760), (205, 998272), (220, 930208), (320, 639518), (328, 623920), (352, 581380), (410, 499136), (440, 465104), (451, 453760), (640, 319759), (656, 311960), (704, 290690), (709, 288640), (820, 249568), (880, 232552), (902, 226880), (1312, 155980), (1408, 145345), (1418, 144320), (1640, 124784), (1760, 116276), (1804, 113440), (2255, 90752), (2624, 77990), (2836, 72160), (3280, 62392), (3520, 58138), (3545, 57728), (3608, 56720), (4510, 45376), (5248, 38995), (5672, 36080), (6560, 31196), (7040, 29069), (7090, 28864), (7216, 28360), (7799, 26240), (9020, 22688), (11344, 18040), (13120, 15598), (14180, 14432)]