20284280

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2833}}^1$

素因数の和:3023

約数の個数: 32

約数和(自身を含む): 45910800

約数和(自身を除く): 25626520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2833, 3580, 5666, 7160, 11332, 14165, 22664, 28330, 56660, 113320, 507107, 1014214, 2028428, 2535535, 4056856, 5071070, 10142140, 20284280]

約数ペア:

[(1, 20284280), (2, 10142140), (4, 5071070), (5, 4056856), (8, 2535535), (10, 2028428), (20, 1014214), (40, 507107), (179, 113320), (358, 56660), (716, 28330), (895, 22664), (1432, 14165), (1790, 11332), (2833, 7160), (3580, 5666)]