81715340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83383}}^1$

素因数の和:83406

約数の個数: 36

約数和(自身を含む): 199621296

約数和(自身を除く): 117905956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83383, 166766, 333532, 416915, 583681, 833830, 1167362, 1667660, 2334724, 2918405, 4085767, 5836810, 8171534, 11673620, 16343068, 20428835, 40857670, 81715340]

約数ペア:

[(1, 81715340), (2, 40857670), (4, 20428835), (5, 16343068), (7, 11673620), (10, 8171534), (14, 5836810), (20, 4085767), (28, 2918405), (35, 2334724), (49, 1667660), (70, 1167362), (98, 833830), (140, 583681), (196, 416915), (245, 333532), (490, 166766), (980, 83383)]