20628656

素因数分解:

$2^4\times {\mathrm{991}}^1\times {\mathrm{1301}}^1$

素因数の和:2300

約数の個数: 20

約数和(自身を含む): 40039104

約数和(自身を除く): 19410448

約数列:

[1, 2, 4, 8, 16, 991, 1301, 1982, 2602, 3964, 5204, 7928, 10408, 15856, 20816, 1289291, 2578582, 5157164, 10314328, 20628656]

約数ペア:

[(1, 20628656), (2, 10314328), (4, 5157164), (8, 2578582), (16, 1289291), (991, 20816), (1301, 15856), (1982, 10408), (2602, 7928), (3964, 5204)]