28279755

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5281}}^1$

素因数の和:5316

約数の個数: 48

約数和(自身を含む): 59327424

約数和(自身を除く): 31047669

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 5281, 5355, 15843, 26405, 36967, 47529, 79215, 89777, 110901, 184835, 237645, 269331, 332703, 448885, 554505, 628439, 807993, 1346655, 1663515, 1885317, 3142195, 4039965, 5655951, 9426585, 28279755]

約数ペア:

[(1, 28279755), (3, 9426585), (5, 5655951), (7, 4039965), (9, 3142195), (15, 1885317), (17, 1663515), (21, 1346655), (35, 807993), (45, 628439), (51, 554505), (63, 448885), (85, 332703), (105, 269331), (119, 237645), (153, 184835), (255, 110901), (315, 89777), (357, 79215), (595, 47529), (765, 36967), (1071, 26405), (1785, 15843), (5281, 5355)]