18719104

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 40392000

約数和(自身を除く): 21672896

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 128, 152, 172, 179, 304, 344, 358, 608, 688, 716, 817, 1216, 1376, 1432, 1634, 2432, 2752, 2864, 3268, 3401, 5504, 5728, 6536, 6802, 7697, 11456, 13072, 13604, 15394, 22912, 26144, 27208, 30788, 52288, 54416, 61576, 104576, 108832, 123152, 146243, 217664, 246304, 292486, 435328, 492608, 584972, 985216, 1169944, 2339888, 4679776, 9359552, 18719104]

約数ペア:

[(1, 18719104), (2, 9359552), (4, 4679776), (8, 2339888), (16, 1169944), (19, 985216), (32, 584972), (38, 492608), (43, 435328), (64, 292486), (76, 246304), (86, 217664), (128, 146243), (152, 123152), (172, 108832), (179, 104576), (304, 61576), (344, 54416), (358, 52288), (608, 30788), (688, 27208), (716, 26144), (817, 22912), (1216, 15394), (1376, 13604), (1432, 13072), (1634, 11456), (2432, 7697), (2752, 6802), (2864, 6536), (3268, 5728), (3401, 5504)]