20286864

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10837}}^1$

素因数の和:10864

約数の個数: 60

約数和(自身を含む): 61147996

約数和(自身を除く): 40861132

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 10837, 21674, 32511, 43348, 65022, 86696, 97533, 130044, 140881, 173392, 195066, 260088, 281762, 390132, 422643, 520176, 563524, 780264, 845286, 1127048, 1267929, 1560528, 1690572, 2254096, 2535858, 3381144, 5071716, 6762288, 10143432, 20286864]

約数ペア:

[(1, 20286864), (2, 10143432), (3, 6762288), (4, 5071716), (6, 3381144), (8, 2535858), (9, 2254096), (12, 1690572), (13, 1560528), (16, 1267929), (18, 1127048), (24, 845286), (26, 780264), (36, 563524), (39, 520176), (48, 422643), (52, 390132), (72, 281762), (78, 260088), (104, 195066), (117, 173392), (144, 140881), (156, 130044), (208, 97533), (234, 86696), (312, 65022), (468, 43348), (624, 32511), (936, 21674), (1872, 10837)]