1286985

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 2560896

約数和(自身を除く): 1273911

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 103, 105, 119, 147, 245, 255, 309, 357, 515, 595, 721, 735, 833, 1545, 1751, 1785, 2163, 2499, 3605, 4165, 5047, 5253, 8755, 10815, 12257, 12495, 15141, 25235, 26265, 36771, 61285, 75705, 85799, 183855, 257397, 428995, 1286985]

約数ペア:

[(1, 1286985), (3, 428995), (5, 257397), (7, 183855), (15, 85799), (17, 75705), (21, 61285), (35, 36771), (49, 26265), (51, 25235), (85, 15141), (103, 12495), (105, 12257), (119, 10815), (147, 8755), (245, 5253), (255, 5047), (309, 4165), (357, 3605), (515, 2499), (595, 2163), (721, 1785), (735, 1751), (833, 1545)]