3961390

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4451}}^1$

素因数の和:4547

約数の個数: 16

約数和(自身を含む): 7212240

約数和(自身を除く): 3250850

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 4451, 8902, 22255, 44510, 396139, 792278, 1980695, 3961390]

約数ペア:

[(1, 3961390), (2, 1980695), (5, 792278), (10, 396139), (89, 44510), (178, 22255), (445, 8902), (890, 4451)]