19198460

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2347}}^1$

素因数の和:2765

約数の個数: 24

約数和(自身を含む): 40432560

約数和(自身を除く): 21234100

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 2347, 4090, 4694, 8180, 9388, 11735, 23470, 46940, 959923, 1919846, 3839692, 4799615, 9599230, 19198460]

約数ペア:

[(1, 19198460), (2, 9599230), (4, 4799615), (5, 3839692), (10, 1919846), (20, 959923), (409, 46940), (818, 23470), (1636, 11735), (2045, 9388), (2347, 8180), (4090, 4694)]