28754880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 224

約数和(自身を含む): 114117120

約数和(自身を除く): 85362240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 385, 389, 420, 440, 448, 462, 480, 528, 560, 616, 660, 672, 704, 770, 778, 840, 880, 924, 960, 1056, 1120, 1155, 1167, 1232, 1320, 1344, 1540, 1556, 1680, 1760, 1848, 1945, 2112, 2240, 2310, 2334, 2464, 2640, 2723, 3080, 3112, 3360, 3520, 3696, 3890, 4279, 4620, 4668, 4928, 5280, 5446, 5835, 6160, 6224, 6720, 7392, 7780, 8169, 8558, 9240, 9336, 10560, 10892, 11670, 12320, 12448, 12837, 13615, 14784, 15560, 16338, 17116, 18480, 18672, 21395, 21784, 23340, 24640, 24896, 25674, 27230, 29953, 31120, 32676, 34232, 36960, 37344, 40845, 42790, 43568, 46680, 51348, 54460, 59906, 62240, 64185, 65352, 68464, 73920, 74688, 81690, 85580, 87136, 89859, 93360, 102696, 108920, 119812, 124480, 128370, 130704, 136928, 149765, 163380, 171160, 174272, 179718, 186720, 205392, 217840, 239624, 256740, 261408, 273856, 299530, 326760, 342320, 359436, 373440, 410784, 435680, 449295, 479248, 513480, 522816, 599060, 653520, 684640, 718872, 821568, 871360, 898590, 958496, 1026960, 1198120, 1307040, 1369280, 1437744, 1797180, 1916992, 2053920, 2396240, 2614080, 2875488, 3594360, 4107840, 4792480, 5750976, 7188720, 9584960, 14377440, 28754880]

約数ペア:

[(1, 28754880), (2, 14377440), (3, 9584960), (4, 7188720), (5, 5750976), (6, 4792480), (7, 4107840), (8, 3594360), (10, 2875488), (11, 2614080), (12, 2396240), (14, 2053920), (15, 1916992), (16, 1797180), (20, 1437744), (21, 1369280), (22, 1307040), (24, 1198120), (28, 1026960), (30, 958496), (32, 898590), (33, 871360), (35, 821568), (40, 718872), (42, 684640), (44, 653520), (48, 599060), (55, 522816), (56, 513480), (60, 479248), (64, 449295), (66, 435680), (70, 410784), (77, 373440), (80, 359436), (84, 342320), (88, 326760), (96, 299530), (105, 273856), (110, 261408), (112, 256740), (120, 239624), (132, 217840), (140, 205392), (154, 186720), (160, 179718), (165, 174272), (168, 171160), (176, 163380), (192, 149765), (210, 136928), (220, 130704), (224, 128370), (231, 124480), (240, 119812), (264, 108920), (280, 102696), (308, 93360), (320, 89859), (330, 87136), (336, 85580), (352, 81690), (385, 74688), (389, 73920), (420, 68464), (440, 65352), (448, 64185), (462, 62240), (480, 59906), (528, 54460), (560, 51348), (616, 46680), (660, 43568), (672, 42790), (704, 40845), (770, 37344), (778, 36960), (840, 34232), (880, 32676), (924, 31120), (960, 29953), (1056, 27230), (1120, 25674), (1155, 24896), (1167, 24640), (1232, 23340), (1320, 21784), (1344, 21395), (1540, 18672), (1556, 18480), (1680, 17116), (1760, 16338), (1848, 15560), (1945, 14784), (2112, 13615), (2240, 12837), (2310, 12448), (2334, 12320), (2464, 11670), (2640, 10892), (2723, 10560), (3080, 9336), (3112, 9240), (3360, 8558), (3520, 8169), (3696, 7780), (3890, 7392), (4279, 6720), (4620, 6224), (4668, 6160), (4928, 5835), (5280, 5446)]