8418995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 12156480

約数和(自身を除く): 3737485

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 401, 1105, 1235, 1615, 2005, 4199, 5213, 6817, 7619, 20995, 26065, 34085, 38095, 88621, 99047, 129523, 443105, 495235, 647615, 1683799, 8418995]

約数ペア:

[(1, 8418995), (5, 1683799), (13, 647615), (17, 495235), (19, 443105), (65, 129523), (85, 99047), (95, 88621), (221, 38095), (247, 34085), (323, 26065), (401, 20995), (1105, 7619), (1235, 6817), (1615, 5213), (2005, 4199)]