18714580

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2357}}^1$

素因数の和:2763

約数の個数: 24

約数和(自身を含む): 39416328

約数和(自身を除く): 20701748

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2357, 3970, 4714, 7940, 9428, 11785, 23570, 47140, 935729, 1871458, 3742916, 4678645, 9357290, 18714580]

約数ペア:

[(1, 18714580), (2, 9357290), (4, 4678645), (5, 3742916), (10, 1871458), (20, 935729), (397, 47140), (794, 23570), (1588, 11785), (1985, 9428), (2357, 7940), (3970, 4714)]