20900268

素因数分解:

$2^2\times 3^4\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:524

約数の個数: 60

約数和(自身を含む): 55068552

約数和(自身を除く): 34168284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 251, 257, 324, 502, 514, 753, 771, 1004, 1028, 1506, 1542, 2259, 2313, 3012, 3084, 4518, 4626, 6777, 6939, 9036, 9252, 13554, 13878, 20331, 20817, 27108, 27756, 40662, 41634, 64507, 81324, 83268, 129014, 193521, 258028, 387042, 580563, 774084, 1161126, 1741689, 2322252, 3483378, 5225067, 6966756, 10450134, 20900268]

約数ペア:

[(1, 20900268), (2, 10450134), (3, 6966756), (4, 5225067), (6, 3483378), (9, 2322252), (12, 1741689), (18, 1161126), (27, 774084), (36, 580563), (54, 387042), (81, 258028), (108, 193521), (162, 129014), (251, 83268), (257, 81324), (324, 64507), (502, 41634), (514, 40662), (753, 27756), (771, 27108), (1004, 20817), (1028, 20331), (1506, 13878), (1542, 13554), (2259, 9252), (2313, 9036), (3012, 6939), (3084, 6777), (4518, 4626)]