171130520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{388933}}^1$

素因数の和:388955

約数の個数: 32

約数和(自身を含む): 420048720

約数和(自身を除く): 248918200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 388933, 777866, 1555732, 1944665, 3111464, 3889330, 4278263, 7778660, 8556526, 15557320, 17113052, 21391315, 34226104, 42782630, 85565260, 171130520]

約数ペア:

[(1, 171130520), (2, 85565260), (4, 42782630), (5, 34226104), (8, 21391315), (10, 17113052), (11, 15557320), (20, 8556526), (22, 7778660), (40, 4278263), (44, 3889330), (55, 3111464), (88, 1944665), (110, 1555732), (220, 777866), (440, 388933)]