289702540

素因数分解:

$2^2\times 5^1\times {\mathrm{3539}}^1\times {\mathrm{4093}}^1$

素因数の和:7641

約数の個数: 24

約数和(自身を含む): 608695920

約数和(自身を除く): 318993380

約数列:

[1, 2, 4, 5, 10, 20, 3539, 4093, 7078, 8186, 14156, 16372, 17695, 20465, 35390, 40930, 70780, 81860, 14485127, 28970254, 57940508, 72425635, 144851270, 289702540]

約数ペア:

[(1, 289702540), (2, 144851270), (4, 72425635), (5, 57940508), (10, 28970254), (20, 14485127), (3539, 81860), (4093, 70780), (7078, 40930), (8186, 35390), (14156, 20465), (16372, 17695)]