18088780

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1091}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 38067120

約数和(自身を除く): 19978340

約数列:

[1, 2, 4, 5, 10, 20, 829, 1091, 1658, 2182, 3316, 4145, 4364, 5455, 8290, 10910, 16580, 21820, 904439, 1808878, 3617756, 4522195, 9044390, 18088780]

約数ペア:

[(1, 18088780), (2, 9044390), (4, 4522195), (5, 3617756), (10, 1808878), (20, 904439), (829, 21820), (1091, 16580), (1658, 10910), (2182, 8290), (3316, 5455), (4145, 4364)]