20833120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 192

約数和(自身を含む): 65318400

約数和(自身を除く): 44485280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 32, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 89, 95, 110, 112, 133, 140, 152, 154, 160, 176, 178, 190, 209, 220, 224, 266, 280, 304, 308, 352, 356, 380, 385, 418, 440, 445, 532, 560, 608, 616, 623, 665, 712, 760, 770, 836, 880, 890, 979, 1045, 1064, 1120, 1232, 1246, 1330, 1424, 1463, 1520, 1540, 1672, 1691, 1760, 1780, 1958, 2090, 2128, 2464, 2492, 2660, 2848, 2926, 3040, 3080, 3115, 3344, 3382, 3560, 3916, 4180, 4256, 4895, 4984, 5320, 5852, 6160, 6230, 6688, 6764, 6853, 7120, 7315, 7832, 8360, 8455, 9790, 9968, 10640, 11704, 11837, 12320, 12460, 13528, 13706, 14240, 14630, 15664, 16720, 16910, 18601, 19580, 19936, 21280, 23408, 23674, 24920, 27056, 27412, 29260, 31328, 33440, 33820, 34265, 37202, 39160, 46816, 47348, 49840, 54112, 54824, 58520, 59185, 67640, 68530, 74404, 78320, 93005, 94696, 99680, 109648, 117040, 118370, 130207, 135280, 137060, 148808, 156640, 186010, 189392, 219296, 234080, 236740, 260414, 270560, 274120, 297616, 372020, 378784, 473480, 520828, 548240, 595232, 651035, 744040, 946960, 1041656, 1096480, 1302070, 1488080, 1893920, 2083312, 2604140, 2976160, 4166624, 5208280, 10416560, 20833120]

約数ペア:

[(1, 20833120), (2, 10416560), (4, 5208280), (5, 4166624), (7, 2976160), (8, 2604140), (10, 2083312), (11, 1893920), (14, 1488080), (16, 1302070), (19, 1096480), (20, 1041656), (22, 946960), (28, 744040), (32, 651035), (35, 595232), (38, 548240), (40, 520828), (44, 473480), (55, 378784), (56, 372020), (70, 297616), (76, 274120), (77, 270560), (80, 260414), (88, 236740), (89, 234080), (95, 219296), (110, 189392), (112, 186010), (133, 156640), (140, 148808), (152, 137060), (154, 135280), (160, 130207), (176, 118370), (178, 117040), (190, 109648), (209, 99680), (220, 94696), (224, 93005), (266, 78320), (280, 74404), (304, 68530), (308, 67640), (352, 59185), (356, 58520), (380, 54824), (385, 54112), (418, 49840), (440, 47348), (445, 46816), (532, 39160), (560, 37202), (608, 34265), (616, 33820), (623, 33440), (665, 31328), (712, 29260), (760, 27412), (770, 27056), (836, 24920), (880, 23674), (890, 23408), (979, 21280), (1045, 19936), (1064, 19580), (1120, 18601), (1232, 16910), (1246, 16720), (1330, 15664), (1424, 14630), (1463, 14240), (1520, 13706), (1540, 13528), (1672, 12460), (1691, 12320), (1760, 11837), (1780, 11704), (1958, 10640), (2090, 9968), (2128, 9790), (2464, 8455), (2492, 8360), (2660, 7832), (2848, 7315), (2926, 7120), (3040, 6853), (3080, 6764), (3115, 6688), (3344, 6230), (3382, 6160), (3560, 5852), (3916, 5320), (4180, 4984), (4256, 4895)]