20242780

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1579}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 42603120

約数和(自身を除く): 22360340

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 1579, 2564, 3158, 3205, 6316, 6410, 7895, 12820, 15790, 31580, 1012139, 2024278, 4048556, 5060695, 10121390, 20242780]

約数ペア:

[(1, 20242780), (2, 10121390), (4, 5060695), (5, 4048556), (10, 2024278), (20, 1012139), (641, 31580), (1282, 15790), (1579, 12820), (2564, 7895), (3158, 6410), (3205, 6316)]