81173988

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{5113}}^1$

素因数の和:5143

約数の個数: 90

約数和(自身を含む): 246898806

約数和(自身を除く): 165724818

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 252, 294, 324, 378, 441, 567, 588, 756, 882, 1134, 1323, 1764, 2268, 2646, 3969, 5113, 5292, 7938, 10226, 15339, 15876, 20452, 30678, 35791, 46017, 61356, 71582, 92034, 107373, 138051, 143164, 184068, 214746, 250537, 276102, 322119, 414153, 429492, 501074, 552204, 644238, 751611, 828306, 966357, 1002148, 1288476, 1503222, 1656612, 1932714, 2254833, 2899071, 3006444, 3865428, 4509666, 5798142, 6764499, 9019332, 11596284, 13528998, 20293497, 27057996, 40586994, 81173988]

約数ペア:

[(1, 81173988), (2, 40586994), (3, 27057996), (4, 20293497), (6, 13528998), (7, 11596284), (9, 9019332), (12, 6764499), (14, 5798142), (18, 4509666), (21, 3865428), (27, 3006444), (28, 2899071), (36, 2254833), (42, 1932714), (49, 1656612), (54, 1503222), (63, 1288476), (81, 1002148), (84, 966357), (98, 828306), (108, 751611), (126, 644238), (147, 552204), (162, 501074), (189, 429492), (196, 414153), (252, 322119), (294, 276102), (324, 250537), (378, 214746), (441, 184068), (567, 143164), (588, 138051), (756, 107373), (882, 92034), (1134, 71582), (1323, 61356), (1764, 46017), (2268, 35791), (2646, 30678), (3969, 20452), (5113, 15876), (5292, 15339), (7938, 10226)]