131684840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{470303}}^1$

素因数の和:470321

約数の個数: 32

約数和(自身を含む): 338618880

約数和(自身を除く): 206934040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 470303, 940606, 1881212, 2351515, 3292121, 3762424, 4703030, 6584242, 9406060, 13168484, 16460605, 18812120, 26336968, 32921210, 65842420, 131684840]

約数ペア:

[(1, 131684840), (2, 65842420), (4, 32921210), (5, 26336968), (7, 18812120), (8, 16460605), (10, 13168484), (14, 9406060), (20, 6584242), (28, 4703030), (35, 3762424), (40, 3292121), (56, 2351515), (70, 1881212), (140, 940606), (280, 470303)]