205316420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{74933}}^1$

素因数の和:75079

約数の個数: 24

約数和(自身を含む): 434317464

約数和(自身を除く): 229001044

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 74933, 149866, 299732, 374665, 749330, 1498660, 10265821, 20531642, 41063284, 51329105, 102658210, 205316420]

約数ペア:

[(1, 205316420), (2, 102658210), (4, 51329105), (5, 41063284), (10, 20531642), (20, 10265821), (137, 1498660), (274, 749330), (548, 374665), (685, 299732), (1370, 149866), (2740, 74933)]