18614528

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 40471200

約数和(自身を除く): 21856672

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 89, 128, 152, 172, 178, 256, 304, 344, 356, 608, 688, 712, 817, 1216, 1376, 1424, 1634, 1691, 2432, 2752, 2848, 3268, 3382, 3827, 4864, 5504, 5696, 6536, 6764, 7654, 11008, 11392, 13072, 13528, 15308, 22784, 26144, 27056, 30616, 52288, 54112, 61232, 72713, 104576, 108224, 122464, 145426, 209152, 216448, 244928, 290852, 432896, 489856, 581704, 979712, 1163408, 2326816, 4653632, 9307264, 18614528]

約数ペア:

[(1, 18614528), (2, 9307264), (4, 4653632), (8, 2326816), (16, 1163408), (19, 979712), (32, 581704), (38, 489856), (43, 432896), (64, 290852), (76, 244928), (86, 216448), (89, 209152), (128, 145426), (152, 122464), (172, 108224), (178, 104576), (256, 72713), (304, 61232), (344, 54112), (356, 52288), (608, 30616), (688, 27056), (712, 26144), (817, 22784), (1216, 15308), (1376, 13528), (1424, 13072), (1634, 11392), (1691, 11008), (2432, 7654), (2752, 6764), (2848, 6536), (3268, 5696), (3382, 5504), (3827, 4864)]