208541680

素因数分解:

$2^4\times 5^1\times {\mathrm{2606771}}^1$

素因数の和:2606784

約数の個数: 20

約数和(自身を含む): 484859592

約数和(自身を除く): 276317912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2606771, 5213542, 10427084, 13033855, 20854168, 26067710, 41708336, 52135420, 104270840, 208541680]

約数ペア:

[(1, 208541680), (2, 104270840), (4, 52135420), (5, 41708336), (8, 26067710), (10, 20854168), (16, 13033855), (20, 10427084), (40, 5213542), (80, 2606771)]