78142580

素因数分解:

$2^2\times 5^1\times {\mathrm{1669}}^1\times {\mathrm{2341}}^1$

素因数の和:4019

約数の個数: 24

約数和(自身を含む): 164267880

約数和(自身を除く): 86125300

約数列:

[1, 2, 4, 5, 10, 20, 1669, 2341, 3338, 4682, 6676, 8345, 9364, 11705, 16690, 23410, 33380, 46820, 3907129, 7814258, 15628516, 19535645, 39071290, 78142580]

約数ペア:

[(1, 78142580), (2, 39071290), (4, 19535645), (5, 15628516), (10, 7814258), (20, 3907129), (1669, 46820), (2341, 33380), (3338, 23410), (4682, 16690), (6676, 11705), (8345, 9364)]