26489260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{439}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 63866880

約数和(自身を除く): 37377620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 439, 862, 878, 1724, 1756, 2155, 2195, 3017, 3073, 4310, 4390, 6034, 6146, 8620, 8780, 12068, 12292, 15085, 15365, 30170, 30730, 60340, 61460, 189209, 378418, 756836, 946045, 1324463, 1892090, 2648926, 3784180, 5297852, 6622315, 13244630, 26489260]

約数ペア:

[(1, 26489260), (2, 13244630), (4, 6622315), (5, 5297852), (7, 3784180), (10, 2648926), (14, 1892090), (20, 1324463), (28, 946045), (35, 756836), (70, 378418), (140, 189209), (431, 61460), (439, 60340), (862, 30730), (878, 30170), (1724, 15365), (1756, 15085), (2155, 12292), (2195, 12068), (3017, 8780), (3073, 8620), (4310, 6146), (4390, 6034)]