208164520

素因数分解:

$2^3\times 5^1\times {\mathrm{5204113}}^1$

素因数の和:5204124

約数の個数: 16

約数和(自身を含む): 468370260

約数和(自身を除く): 260205740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5204113, 10408226, 20816452, 26020565, 41632904, 52041130, 104082260, 208164520]

約数ペア:

[(1, 208164520), (2, 104082260), (4, 52041130), (5, 41632904), (8, 26020565), (10, 20816452), (20, 10408226), (40, 5204113)]