12989725

素因数分解:

$5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 18550400

約数和(自身を除く): 5560675

約数列:

[1, 5, 7, 25, 35, 175, 199, 373, 995, 1393, 1865, 2611, 4975, 6965, 9325, 13055, 34825, 65275, 74227, 371135, 519589, 1855675, 2597945, 12989725]

約数ペア:

[(1, 12989725), (5, 2597945), (7, 1855675), (25, 519589), (35, 371135), (175, 74227), (199, 65275), (373, 34825), (995, 13055), (1393, 9325), (1865, 6965), (2611, 4975)]