18435568

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 37028880

約数和(自身を除く): 18593312

約数列:

[1, 2, 4, 8, 16, 41, 82, 157, 164, 179, 314, 328, 358, 628, 656, 716, 1256, 1432, 2512, 2864, 6437, 7339, 12874, 14678, 25748, 28103, 29356, 51496, 56206, 58712, 102992, 112412, 117424, 224824, 449648, 1152223, 2304446, 4608892, 9217784, 18435568]

約数ペア:

[(1, 18435568), (2, 9217784), (4, 4608892), (8, 2304446), (16, 1152223), (41, 449648), (82, 224824), (157, 117424), (164, 112412), (179, 102992), (314, 58712), (328, 56206), (358, 51496), (628, 29356), (656, 28103), (716, 25748), (1256, 14678), (1432, 12874), (2512, 7339), (2864, 6437)]