28220005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1319}}^1$

素因数の和:1724

約数の個数: 16

約数和(自身を含む): 37065600

約数和(自身を除く): 8845595

約数列:

[1, 5, 11, 55, 389, 1319, 1945, 4279, 6595, 14509, 21395, 72545, 513091, 2565455, 5644001, 28220005]

約数ペア:

[(1, 28220005), (5, 5644001), (11, 2565455), (55, 513091), (389, 72545), (1319, 21395), (1945, 14509), (4279, 6595)]