1898505

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{41}}^1$

素因数の和:76

約数の個数: 64

約数和(自身を含む): 4032000

約数和(自身を除く): 2133495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 49, 63, 105, 123, 135, 147, 189, 205, 245, 287, 315, 343, 369, 441, 615, 735, 861, 945, 1029, 1107, 1323, 1435, 1715, 1845, 2009, 2205, 2583, 3087, 4305, 5145, 5535, 6027, 6615, 7749, 9261, 10045, 12915, 14063, 15435, 18081, 30135, 38745, 42189, 46305, 54243, 70315, 90405, 126567, 210945, 271215, 379701, 632835, 1898505]

約数ペア:

[(1, 1898505), (3, 632835), (5, 379701), (7, 271215), (9, 210945), (15, 126567), (21, 90405), (27, 70315), (35, 54243), (41, 46305), (45, 42189), (49, 38745), (63, 30135), (105, 18081), (123, 15435), (135, 14063), (147, 12915), (189, 10045), (205, 9261), (245, 7749), (287, 6615), (315, 6027), (343, 5535), (369, 5145), (441, 4305), (615, 3087), (735, 2583), (861, 2205), (945, 2009), (1029, 1845), (1107, 1715), (1323, 1435)]