78115575

素因数分解:

$3^1\times 5^2\times {\mathrm{991}}^1\times {\mathrm{1051}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 129404416

約数和(自身を除く): 51288841

約数列:

[1, 3, 5, 15, 25, 75, 991, 1051, 2973, 3153, 4955, 5255, 14865, 15765, 24775, 26275, 74325, 78825, 1041541, 3124623, 5207705, 15623115, 26038525, 78115575]

約数ペア:

[(1, 78115575), (3, 26038525), (5, 15623115), (15, 5207705), (25, 3124623), (75, 1041541), (991, 78825), (1051, 74325), (2973, 26275), (3153, 24775), (4955, 15765), (5255, 14865)]