26720680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13633}}^1$

素因数の和:13658

約数の個数: 48

約数和(自身を含む): 69942420

約数和(自身を除く): 43221740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 13633, 27266, 54532, 68165, 95431, 109064, 136330, 190862, 272660, 381724, 477155, 545320, 668017, 763448, 954310, 1336034, 1908620, 2672068, 3340085, 3817240, 5344136, 6680170, 13360340, 26720680]

約数ペア:

[(1, 26720680), (2, 13360340), (4, 6680170), (5, 5344136), (7, 3817240), (8, 3340085), (10, 2672068), (14, 1908620), (20, 1336034), (28, 954310), (35, 763448), (40, 668017), (49, 545320), (56, 477155), (70, 381724), (98, 272660), (140, 190862), (196, 136330), (245, 109064), (280, 95431), (392, 68165), (490, 54532), (980, 27266), (1960, 13633)]