26890480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7817}}^1$

素因数の和:7873

約数の個数: 40

約数和(自身を含む): 63982512

約数和(自身を除く): 37092032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7817, 15634, 31268, 39085, 62536, 78170, 125072, 156340, 312680, 336131, 625360, 672262, 1344524, 1680655, 2689048, 3361310, 5378096, 6722620, 13445240, 26890480]

約数ペア:

[(1, 26890480), (2, 13445240), (4, 6722620), (5, 5378096), (8, 3361310), (10, 2689048), (16, 1680655), (20, 1344524), (40, 672262), (43, 625360), (80, 336131), (86, 312680), (172, 156340), (215, 125072), (344, 78170), (430, 62536), (688, 39085), (860, 31268), (1720, 15634), (3440, 7817)]