40380140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18523}}^1$

素因数の和:18641

約数の個数: 24

約数和(自身を含む): 85580880

約数和(自身を除く): 45200740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18523, 37046, 74092, 92615, 185230, 370460, 2019007, 4038014, 8076028, 10095035, 20190070, 40380140]

約数ペア:

[(1, 40380140), (2, 20190070), (4, 10095035), (5, 8076028), (10, 4038014), (20, 2019007), (109, 370460), (218, 185230), (436, 92615), (545, 74092), (1090, 37046), (2180, 18523)]