387022520

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{21841}}^1$

素因数の和:22295

約数の個数: 32

約数和(自身を含む): 872806320

約数和(自身を除く): 485783800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 8860, 17720, 21841, 43682, 87364, 109205, 174728, 218410, 436820, 873640, 9675563, 19351126, 38702252, 48377815, 77404504, 96755630, 193511260, 387022520]

約数ペア:

[(1, 387022520), (2, 193511260), (4, 96755630), (5, 77404504), (8, 48377815), (10, 38702252), (20, 19351126), (40, 9675563), (443, 873640), (886, 436820), (1772, 218410), (2215, 174728), (3544, 109205), (4430, 87364), (8860, 43682), (17720, 21841)]