61790140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71849}}^1$

素因数の和:71901

約数の個数: 24

約数和(自身を含む): 132778800

約数和(自身を除く): 70988660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 71849, 143698, 287396, 359245, 718490, 1436980, 3089507, 6179014, 12358028, 15447535, 30895070, 61790140]

約数ペア:

[(1, 61790140), (2, 30895070), (4, 15447535), (5, 12358028), (10, 6179014), (20, 3089507), (43, 1436980), (86, 718490), (172, 359245), (215, 287396), (430, 143698), (860, 71849)]