26987515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1109}}^1$

素因数の和:1302

約数の個数: 16

約数和(自身を含む): 33672960

約数和(自身を除く): 6685445

約数列:

[1, 5, 31, 155, 157, 785, 1109, 4867, 5545, 24335, 34379, 171895, 174113, 870565, 5397503, 26987515]

約数ペア:

[(1, 26987515), (5, 5397503), (31, 870565), (155, 174113), (157, 171895), (785, 34379), (1109, 24335), (4867, 5545)]