208540480

素因数分解:

$2^6\times 5^1\times {\mathrm{651689}}^1$

素因数の和:651706

約数の個数: 28

約数和(自身を含む): 496587780

約数和(自身を除く): 288047300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 651689, 1303378, 2606756, 3258445, 5213512, 6516890, 10427024, 13033780, 20854048, 26067560, 41708096, 52135120, 104270240, 208540480]

約数ペア:

[(1, 208540480), (2, 104270240), (4, 52135120), (5, 41708096), (8, 26067560), (10, 20854048), (16, 13033780), (20, 10427024), (32, 6516890), (40, 5213512), (64, 3258445), (80, 2606756), (160, 1303378), (320, 651689)]