1640803887

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2557}}^1$

素因数の和:2688

約数の個数: 48

約数和(自身を含む): 2547522432

約数和(自身を除く): 906718545

約数列:

[1, 3, 9, 37, 41, 47, 111, 123, 141, 333, 369, 423, 1517, 1739, 1927, 2557, 4551, 5217, 5781, 7671, 13653, 15651, 17343, 23013, 71299, 94609, 104837, 120179, 213897, 283827, 314511, 360537, 641691, 851481, 943533, 1081611, 3878969, 4446623, 4927339, 11636907, 13339869, 14782017, 34910721, 40019607, 44346051, 182311543, 546934629, 1640803887]

約数ペア:

[(1, 1640803887), (3, 546934629), (9, 182311543), (37, 44346051), (41, 40019607), (47, 34910721), (111, 14782017), (123, 13339869), (141, 11636907), (333, 4927339), (369, 4446623), (423, 3878969), (1517, 1081611), (1739, 943533), (1927, 851481), (2557, 641691), (4551, 360537), (5217, 314511), (5781, 283827), (7671, 213897), (13653, 120179), (15651, 104837), (17343, 94609), (23013, 71299)]