68521575

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{21247}}^1$

素因数の和:21303

約数の個数: 24

約数和(自身を含む): 115929088

約数和(自身を除く): 47407513

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 21247, 63741, 106235, 318705, 531175, 913621, 1593525, 2740863, 4568105, 13704315, 22840525, 68521575]

約数ペア:

[(1, 68521575), (3, 22840525), (5, 13704315), (15, 4568105), (25, 2740863), (43, 1593525), (75, 913621), (129, 531175), (215, 318705), (645, 106235), (1075, 63741), (3225, 21247)]