18939260

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2729}}^1$

素因数の和:3085

約数の個数: 24

約数和(自身を含む): 39901680

約数和(自身を除く): 20962420

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2729, 3470, 5458, 6940, 10916, 13645, 27290, 54580, 946963, 1893926, 3787852, 4734815, 9469630, 18939260]

約数ペア:

[(1, 18939260), (2, 9469630), (4, 4734815), (5, 3787852), (10, 1893926), (20, 946963), (347, 54580), (694, 27290), (1388, 13645), (1735, 10916), (2729, 6940), (3470, 5458)]