28781585

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{5519}}^1$

素因数の和:5680

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 10962415

約数列:

[1, 5, 7, 35, 149, 745, 1043, 5215, 5519, 27595, 38633, 193165, 822331, 4111655, 5756317, 28781585]

約数ペア:

[(1, 28781585), (5, 5756317), (7, 4111655), (35, 822331), (149, 193165), (745, 38633), (1043, 27595), (5215, 5519)]