31887080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18539}}^1$

素因数の和:18593

約数の個数: 32

約数和(自身を含む): 73418400

約数和(自身を除く): 41531320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18539, 37078, 74156, 92695, 148312, 185390, 370780, 741560, 797177, 1594354, 3188708, 3985885, 6377416, 7971770, 15943540, 31887080]

約数ペア:

[(1, 31887080), (2, 15943540), (4, 7971770), (5, 6377416), (8, 3985885), (10, 3188708), (20, 1594354), (40, 797177), (43, 741560), (86, 370780), (172, 185390), (215, 148312), (344, 92695), (430, 74156), (860, 37078), (1720, 18539)]