161444720

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10141}}^1$

素因数の和:10353

約数の個数: 40

約数和(自身を含む): 377282400

約数和(自身を除く): 215837680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 10141, 15920, 20282, 40564, 50705, 81128, 101410, 162256, 202820, 405640, 811280, 2018059, 4036118, 8072236, 10090295, 16144472, 20180590, 32288944, 40361180, 80722360, 161444720]

約数ペア:

[(1, 161444720), (2, 80722360), (4, 40361180), (5, 32288944), (8, 20180590), (10, 16144472), (16, 10090295), (20, 8072236), (40, 4036118), (80, 2018059), (199, 811280), (398, 405640), (796, 202820), (995, 162256), (1592, 101410), (1990, 81128), (3184, 50705), (3980, 40564), (7960, 20282), (10141, 15920)]