20529650

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5783}}^1$

素因数の和:5866

約数の個数: 24

約数和(自身を含む): 38729664

約数和(自身を除く): 18200014

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5783, 11566, 28915, 57830, 144575, 289150, 410593, 821186, 2052965, 4105930, 10264825, 20529650]

約数ペア:

[(1, 20529650), (2, 10264825), (5, 4105930), (10, 2052965), (25, 821186), (50, 410593), (71, 289150), (142, 144575), (355, 57830), (710, 28915), (1775, 11566), (3550, 5783)]