1089620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 2690688

約数和(自身を除く): 1601068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 181, 215, 301, 362, 430, 602, 724, 860, 905, 1204, 1267, 1505, 1810, 2534, 3010, 3620, 5068, 6020, 6335, 7783, 12670, 15566, 25340, 31132, 38915, 54481, 77830, 108962, 155660, 217924, 272405, 544810, 1089620]

約数ペア:

[(1, 1089620), (2, 544810), (4, 272405), (5, 217924), (7, 155660), (10, 108962), (14, 77830), (20, 54481), (28, 38915), (35, 31132), (43, 25340), (70, 15566), (86, 12670), (140, 7783), (172, 6335), (181, 6020), (215, 5068), (301, 3620), (362, 3010), (430, 2534), (602, 1810), (724, 1505), (860, 1267), (905, 1204)]