20673225

素因数分解:

$3^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 39809952

約数和(自身を除く): 19136727

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 83, 123, 135, 205, 225, 243, 249, 369, 405, 415, 615, 675, 747, 1025, 1107, 1215, 1245, 1845, 2025, 2075, 2241, 3075, 3321, 3403, 3735, 5535, 6075, 6225, 6723, 9225, 9963, 10209, 11205, 16605, 17015, 18675, 20169, 27675, 30627, 33615, 49815, 51045, 56025, 83025, 85075, 91881, 100845, 153135, 168075, 249075, 255225, 275643, 459405, 504225, 765675, 826929, 1378215, 2297025, 4134645, 6891075, 20673225]

約数ペア:

[(1, 20673225), (3, 6891075), (5, 4134645), (9, 2297025), (15, 1378215), (25, 826929), (27, 765675), (41, 504225), (45, 459405), (75, 275643), (81, 255225), (83, 249075), (123, 168075), (135, 153135), (205, 100845), (225, 91881), (243, 85075), (249, 83025), (369, 56025), (405, 51045), (415, 49815), (615, 33615), (675, 30627), (747, 27675), (1025, 20169), (1107, 18675), (1215, 17015), (1245, 16605), (1845, 11205), (2025, 10209), (2075, 9963), (2241, 9225), (3075, 6723), (3321, 6225), (3403, 6075), (3735, 5535)]