25879815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 50358672

約数和(自身を除く): 24478857

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 83, 117, 123, 169, 195, 205, 249, 369, 415, 507, 533, 585, 615, 747, 845, 1079, 1245, 1521, 1599, 1845, 2535, 2665, 3237, 3403, 3735, 4797, 5395, 6929, 7605, 7995, 9711, 10209, 14027, 16185, 17015, 20787, 23985, 30627, 34645, 42081, 44239, 48555, 51045, 62361, 70135, 103935, 126243, 132717, 153135, 210405, 221195, 311805, 398151, 575107, 631215, 663585, 1725321, 1990755, 2875535, 5175963, 8626605, 25879815]

約数ペア:

[(1, 25879815), (3, 8626605), (5, 5175963), (9, 2875535), (13, 1990755), (15, 1725321), (39, 663585), (41, 631215), (45, 575107), (65, 398151), (83, 311805), (117, 221195), (123, 210405), (169, 153135), (195, 132717), (205, 126243), (249, 103935), (369, 70135), (415, 62361), (507, 51045), (533, 48555), (585, 44239), (615, 42081), (747, 34645), (845, 30627), (1079, 23985), (1245, 20787), (1521, 17015), (1599, 16185), (1845, 14027), (2535, 10209), (2665, 9711), (3237, 7995), (3403, 7605), (3735, 6929), (4797, 5395)]