31019480

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7529}}^1$

素因数の和:7643

約数の個数: 32

約数和(自身を含む): 70480800

約数和(自身を除く): 39461320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 7529, 15058, 30116, 37645, 60232, 75290, 150580, 301160, 775487, 1550974, 3101948, 3877435, 6203896, 7754870, 15509740, 31019480]

約数ペア:

[(1, 31019480), (2, 15509740), (4, 7754870), (5, 6203896), (8, 3877435), (10, 3101948), (20, 1550974), (40, 775487), (103, 301160), (206, 150580), (412, 75290), (515, 60232), (824, 37645), (1030, 30116), (2060, 15058), (4120, 7529)]