172645240

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{12227}}^1$

素因数の和:12591

約数の個数: 32

約数和(自身を含む): 389584080

約数和(自身を除く): 216938840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 12227, 14120, 24454, 48908, 61135, 97816, 122270, 244540, 489080, 4316131, 8632262, 17264524, 21580655, 34529048, 43161310, 86322620, 172645240]

約数ペア:

[(1, 172645240), (2, 86322620), (4, 43161310), (5, 34529048), (8, 21580655), (10, 17264524), (20, 8632262), (40, 4316131), (353, 489080), (706, 244540), (1412, 122270), (1765, 97816), (2824, 61135), (3530, 48908), (7060, 24454), (12227, 14120)]