28640568

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 78721920

約数和(自身を除く): 50081352

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 157, 264, 314, 471, 628, 691, 942, 1256, 1382, 1727, 1884, 2073, 2764, 3454, 3768, 4146, 5181, 5528, 6908, 7601, 8292, 10362, 13816, 15202, 16584, 20724, 22803, 30404, 41448, 45606, 60808, 91212, 108487, 182424, 216974, 325461, 433948, 650922, 867896, 1193357, 1301844, 2386714, 2603688, 3580071, 4773428, 7160142, 9546856, 14320284, 28640568]

約数ペア:

[(1, 28640568), (2, 14320284), (3, 9546856), (4, 7160142), (6, 4773428), (8, 3580071), (11, 2603688), (12, 2386714), (22, 1301844), (24, 1193357), (33, 867896), (44, 650922), (66, 433948), (88, 325461), (132, 216974), (157, 182424), (264, 108487), (314, 91212), (471, 60808), (628, 45606), (691, 41448), (942, 30404), (1256, 22803), (1382, 20724), (1727, 16584), (1884, 15202), (2073, 13816), (2764, 10362), (3454, 8292), (3768, 7601), (4146, 6908), (5181, 5528)]