28206640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:291

約数の個数: 160

約数和(自身を含む): 86423040

約数和(自身を除く): 58216400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 133, 140, 152, 154, 176, 190, 209, 220, 241, 266, 280, 304, 308, 380, 385, 418, 440, 482, 532, 560, 616, 665, 760, 770, 836, 880, 964, 1045, 1064, 1205, 1232, 1330, 1463, 1520, 1540, 1672, 1687, 1928, 2090, 2128, 2410, 2651, 2660, 2926, 3080, 3344, 3374, 3856, 4180, 4579, 4820, 5302, 5320, 5852, 6160, 6748, 7315, 8360, 8435, 9158, 9640, 10604, 10640, 11704, 13255, 13496, 14630, 16720, 16870, 18316, 18557, 19280, 21208, 22895, 23408, 26510, 26992, 29260, 32053, 33740, 36632, 37114, 42416, 45790, 50369, 53020, 58520, 64106, 67480, 73264, 74228, 91580, 92785, 100738, 106040, 117040, 128212, 134960, 148456, 160265, 183160, 185570, 201476, 212080, 251845, 256424, 296912, 320530, 352583, 366320, 371140, 402952, 503690, 512848, 641060, 705166, 742280, 805904, 1007380, 1282120, 1410332, 1484560, 1762915, 2014760, 2564240, 2820664, 3525830, 4029520, 5641328, 7051660, 14103320, 28206640]

約数ペア:

[(1, 28206640), (2, 14103320), (4, 7051660), (5, 5641328), (7, 4029520), (8, 3525830), (10, 2820664), (11, 2564240), (14, 2014760), (16, 1762915), (19, 1484560), (20, 1410332), (22, 1282120), (28, 1007380), (35, 805904), (38, 742280), (40, 705166), (44, 641060), (55, 512848), (56, 503690), (70, 402952), (76, 371140), (77, 366320), (80, 352583), (88, 320530), (95, 296912), (110, 256424), (112, 251845), (133, 212080), (140, 201476), (152, 185570), (154, 183160), (176, 160265), (190, 148456), (209, 134960), (220, 128212), (241, 117040), (266, 106040), (280, 100738), (304, 92785), (308, 91580), (380, 74228), (385, 73264), (418, 67480), (440, 64106), (482, 58520), (532, 53020), (560, 50369), (616, 45790), (665, 42416), (760, 37114), (770, 36632), (836, 33740), (880, 32053), (964, 29260), (1045, 26992), (1064, 26510), (1205, 23408), (1232, 22895), (1330, 21208), (1463, 19280), (1520, 18557), (1540, 18316), (1672, 16870), (1687, 16720), (1928, 14630), (2090, 13496), (2128, 13255), (2410, 11704), (2651, 10640), (2660, 10604), (2926, 9640), (3080, 9158), (3344, 8435), (3374, 8360), (3856, 7315), (4180, 6748), (4579, 6160), (4820, 5852), (5302, 5320)]