28980784

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 70281216

約数和(自身を除く): 41300432

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 34, 56, 62, 68, 112, 119, 124, 136, 217, 238, 248, 272, 434, 476, 491, 496, 527, 868, 952, 982, 1054, 1736, 1904, 1964, 2108, 3437, 3472, 3689, 3928, 4216, 6874, 7378, 7856, 8347, 8432, 13748, 14756, 15221, 16694, 27496, 29512, 30442, 33388, 54992, 58429, 59024, 60884, 66776, 106547, 116858, 121768, 133552, 213094, 233716, 243536, 258757, 426188, 467432, 517514, 852376, 934864, 1035028, 1704752, 1811299, 2070056, 3622598, 4140112, 7245196, 14490392, 28980784]

約数ペア:

[(1, 28980784), (2, 14490392), (4, 7245196), (7, 4140112), (8, 3622598), (14, 2070056), (16, 1811299), (17, 1704752), (28, 1035028), (31, 934864), (34, 852376), (56, 517514), (62, 467432), (68, 426188), (112, 258757), (119, 243536), (124, 233716), (136, 213094), (217, 133552), (238, 121768), (248, 116858), (272, 106547), (434, 66776), (476, 60884), (491, 59024), (496, 58429), (527, 54992), (868, 33388), (952, 30442), (982, 29512), (1054, 27496), (1736, 16694), (1904, 15221), (1964, 14756), (2108, 13748), (3437, 8432), (3472, 8347), (3689, 7856), (3928, 7378), (4216, 6874)]