84847780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{38921}}^1$

素因数の和:39039

約数の個数: 24

約数和(自身を含む): 179819640

約数和(自身を除く): 94971860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 38921, 77842, 155684, 194605, 389210, 778420, 4242389, 8484778, 16969556, 21211945, 42423890, 84847780]

約数ペア:

[(1, 84847780), (2, 42423890), (4, 21211945), (5, 16969556), (10, 8484778), (20, 4242389), (109, 778420), (218, 389210), (436, 194605), (545, 155684), (1090, 77842), (2180, 38921)]