81894078

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:559

約数の個数: 80

約数和(自身を含む): 211283424

約数和(自身を除く): 129389346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 257, 281, 378, 514, 562, 567, 771, 843, 1134, 1542, 1686, 1799, 1967, 2313, 2529, 3598, 3934, 4626, 5058, 5397, 5901, 6939, 7587, 10794, 11802, 13878, 15174, 16191, 17703, 20817, 22761, 32382, 35406, 41634, 45522, 48573, 53109, 72217, 97146, 106218, 144434, 145719, 159327, 216651, 291438, 318654, 433302, 505519, 649953, 1011038, 1299906, 1516557, 1949859, 3033114, 3899718, 4549671, 5849577, 9099342, 11699154, 13649013, 27298026, 40947039, 81894078]

約数ペア:

[(1, 81894078), (2, 40947039), (3, 27298026), (6, 13649013), (7, 11699154), (9, 9099342), (14, 5849577), (18, 4549671), (21, 3899718), (27, 3033114), (42, 1949859), (54, 1516557), (63, 1299906), (81, 1011038), (126, 649953), (162, 505519), (189, 433302), (257, 318654), (281, 291438), (378, 216651), (514, 159327), (562, 145719), (567, 144434), (771, 106218), (843, 97146), (1134, 72217), (1542, 53109), (1686, 48573), (1799, 45522), (1967, 41634), (2313, 35406), (2529, 32382), (3598, 22761), (3934, 20817), (4626, 17703), (5058, 16191), (5397, 15174), (5901, 13878), (6939, 11802), (7587, 10794)]