75705

素因数分解:

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

素因数の和:125

約数の個数: 24

約数和(自身を含む): 142272

約数和(自身を除く): 66567

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 103, 105, 147, 245, 309, 515, 721, 735, 1545, 2163, 3605, 5047, 10815, 15141, 25235, 75705]

約数ペア:

[(1, 75705), (3, 25235), (5, 15141), (7, 10815), (15, 5047), (21, 3605), (35, 2163), (49, 1545), (103, 735), (105, 721), (147, 515), (245, 309)]