26457680

素因数分解:

$2^4\times 5^1\times {\mathrm{330721}}^1$

素因数の和:330734

約数の個数: 20

約数和(自身を含む): 61514292

約数和(自身を除く): 35056612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 330721, 661442, 1322884, 1653605, 2645768, 3307210, 5291536, 6614420, 13228840, 26457680]

約数ペア:

[(1, 26457680), (2, 13228840), (4, 6614420), (5, 5291536), (8, 3307210), (10, 2645768), (16, 1653605), (20, 1322884), (40, 661442), (80, 330721)]