28206590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{90989}}^1$

素因数の和:91027

約数の個数: 16

約数和(自身を含む): 52410240

約数和(自身を除く): 24203650

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 90989, 181978, 454945, 909890, 2820659, 5641318, 14103295, 28206590]

約数ペア:

[(1, 28206590), (2, 14103295), (5, 5641318), (10, 2820659), (31, 909890), (62, 454945), (155, 181978), (310, 90989)]