28475660

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1697}}^1$

素因数の和:2545

約数の個数: 24

約数和(自身を含む): 59905440

約数和(自身を除く): 31429780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1678, 1697, 3356, 3394, 4195, 6788, 8390, 8485, 16780, 16970, 33940, 1423783, 2847566, 5695132, 7118915, 14237830, 28475660]

約数ペア:

[(1, 28475660), (2, 14237830), (4, 7118915), (5, 5695132), (10, 2847566), (20, 1423783), (839, 33940), (1678, 16970), (1697, 16780), (3356, 8485), (3394, 8390), (4195, 6788)]