85371985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{12809}}^1$

素因数の和:12888

約数の個数: 16

約数和(自身を含む): 108218880

約数和(自身を除く): 22846895

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 12809, 64045, 397079, 550787, 1985395, 2753935, 17074397, 85371985]

約数ペア:

[(1, 85371985), (5, 17074397), (31, 2753935), (43, 1985395), (155, 550787), (215, 397079), (1333, 64045), (6665, 12809)]