78526028

素因数分解:

$2^2\times 7^2\times {\mathrm{400643}}^1$

素因数の和:400661

約数の個数: 18

約数和(自身を含む): 159856956

約数和(自身を除く): 81330928

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 400643, 801286, 1602572, 2804501, 5609002, 11218004, 19631507, 39263014, 78526028]

約数ペア:

[(1, 78526028), (2, 39263014), (4, 19631507), (7, 11218004), (14, 5609002), (28, 2804501), (49, 1602572), (98, 801286), (196, 400643)]