20298888

素因数分解:

$2^3\times 3^2\times {\mathrm{257}}^1\times {\mathrm{1097}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 55240380

約数和(自身を除く): 34941492

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 257, 514, 771, 1028, 1097, 1542, 2056, 2194, 2313, 3084, 3291, 4388, 4626, 6168, 6582, 8776, 9252, 9873, 13164, 18504, 19746, 26328, 39492, 78984, 281929, 563858, 845787, 1127716, 1691574, 2255432, 2537361, 3383148, 5074722, 6766296, 10149444, 20298888]

約数ペア:

[(1, 20298888), (2, 10149444), (3, 6766296), (4, 5074722), (6, 3383148), (8, 2537361), (9, 2255432), (12, 1691574), (18, 1127716), (24, 845787), (36, 563858), (72, 281929), (257, 78984), (514, 39492), (771, 26328), (1028, 19746), (1097, 18504), (1542, 13164), (2056, 9873), (2194, 9252), (2313, 8776), (3084, 6582), (3291, 6168), (4388, 4626)]