20890300

素因数分解:

$2^2\times 5^2\times {\mathrm{317}}^1\times {\mathrm{659}}^1$

素因数の和:990

約数の個数: 36

約数和(自身を含む): 45543960

約数和(自身を除く): 24653660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 317, 634, 659, 1268, 1318, 1585, 2636, 3170, 3295, 6340, 6590, 7925, 13180, 15850, 16475, 31700, 32950, 65900, 208903, 417806, 835612, 1044515, 2089030, 4178060, 5222575, 10445150, 20890300]

約数ペア:

[(1, 20890300), (2, 10445150), (4, 5222575), (5, 4178060), (10, 2089030), (20, 1044515), (25, 835612), (50, 417806), (100, 208903), (317, 65900), (634, 32950), (659, 31700), (1268, 16475), (1318, 15850), (1585, 13180), (2636, 7925), (3170, 6590), (3295, 6340)]