13029860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 28459200

約数和(自身を除く): 15429340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 139, 172, 215, 218, 278, 430, 436, 545, 556, 695, 860, 1090, 1390, 2180, 2780, 4687, 5977, 9374, 11954, 15151, 18748, 23435, 23908, 29885, 30302, 46870, 59770, 60604, 75755, 93740, 119540, 151510, 303020, 651493, 1302986, 2605972, 3257465, 6514930, 13029860]

約数ペア:

[(1, 13029860), (2, 6514930), (4, 3257465), (5, 2605972), (10, 1302986), (20, 651493), (43, 303020), (86, 151510), (109, 119540), (139, 93740), (172, 75755), (215, 60604), (218, 59770), (278, 46870), (430, 30302), (436, 29885), (545, 23908), (556, 23435), (695, 18748), (860, 15151), (1090, 11954), (1390, 9374), (2180, 5977), (2780, 4687)]