85204840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{304303}}^1$

素因数の和:304321

約数の個数: 32

約数和(自身を含む): 219098880

約数和(自身を除く): 133894040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 304303, 608606, 1217212, 1521515, 2130121, 2434424, 3043030, 4260242, 6086060, 8520484, 10650605, 12172120, 17040968, 21301210, 42602420, 85204840]

約数ペア:

[(1, 85204840), (2, 42602420), (4, 21301210), (5, 17040968), (7, 12172120), (8, 10650605), (10, 8520484), (14, 6086060), (20, 4260242), (28, 3043030), (35, 2434424), (40, 2130121), (56, 1521515), (70, 1217212), (140, 608606), (280, 304303)]