20358820

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1789}}^1$

素因数の和:2367

約数の個数: 24

約数和(自身を含む): 42852600

約数和(自身を除く): 22493780

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 1789, 2276, 2845, 3578, 5690, 7156, 8945, 11380, 17890, 35780, 1017941, 2035882, 4071764, 5089705, 10179410, 20358820]

約数ペア:

[(1, 20358820), (2, 10179410), (4, 5089705), (5, 4071764), (10, 2035882), (20, 1017941), (569, 35780), (1138, 17890), (1789, 11380), (2276, 8945), (2845, 7156), (3578, 5690)]