20249388

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 53301248

約数和(自身を除く): 33051860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 103, 127, 129, 172, 206, 254, 258, 309, 381, 387, 412, 508, 516, 618, 762, 774, 927, 1143, 1236, 1524, 1548, 1854, 2286, 3708, 4429, 4572, 5461, 8858, 10922, 13081, 13287, 16383, 17716, 21844, 26162, 26574, 32766, 39243, 39861, 49149, 52324, 53148, 65532, 78486, 79722, 98298, 117729, 156972, 159444, 196596, 235458, 470916, 562483, 1124966, 1687449, 2249932, 3374898, 5062347, 6749796, 10124694, 20249388]

約数ペア:

[(1, 20249388), (2, 10124694), (3, 6749796), (4, 5062347), (6, 3374898), (9, 2249932), (12, 1687449), (18, 1124966), (36, 562483), (43, 470916), (86, 235458), (103, 196596), (127, 159444), (129, 156972), (172, 117729), (206, 98298), (254, 79722), (258, 78486), (309, 65532), (381, 53148), (387, 52324), (412, 49149), (508, 39861), (516, 39243), (618, 32766), (762, 26574), (774, 26162), (927, 21844), (1143, 17716), (1236, 16383), (1524, 13287), (1548, 13081), (1854, 10922), (2286, 8858), (3708, 5461), (4429, 4572)]