2813920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 6819120

約数和(自身を除く): 4005200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 409, 430, 688, 818, 860, 1376, 1636, 1720, 2045, 3272, 3440, 4090, 6544, 6880, 8180, 13088, 16360, 17587, 32720, 35174, 65440, 70348, 87935, 140696, 175870, 281392, 351740, 562784, 703480, 1406960, 2813920]

約数ペア:

[(1, 2813920), (2, 1406960), (4, 703480), (5, 562784), (8, 351740), (10, 281392), (16, 175870), (20, 140696), (32, 87935), (40, 70348), (43, 65440), (80, 35174), (86, 32720), (160, 17587), (172, 16360), (215, 13088), (344, 8180), (409, 6880), (430, 6544), (688, 4090), (818, 3440), (860, 3272), (1376, 2045), (1636, 1720)]