51284840

素因数分解:

$2^3\times 5^1\times {\mathrm{1282121}}^1$

素因数の和:1282132

約数の個数: 16

約数和(自身を含む): 115390980

約数和(自身を除く): 64106140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1282121, 2564242, 5128484, 6410605, 10256968, 12821210, 25642420, 51284840]

約数ペア:

[(1, 51284840), (2, 25642420), (4, 12821210), (5, 10256968), (8, 6410605), (10, 5128484), (20, 2564242), (40, 1282121)]