7728340

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{787}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 16283232

約数和(自身を除く): 8554892

約数列:

[1, 2, 4, 5, 10, 20, 491, 787, 982, 1574, 1964, 2455, 3148, 3935, 4910, 7870, 9820, 15740, 386417, 772834, 1545668, 1932085, 3864170, 7728340]

約数ペア:

[(1, 7728340), (2, 3864170), (4, 1932085), (5, 1545668), (10, 772834), (20, 386417), (491, 15740), (787, 9820), (982, 7870), (1574, 4910), (1964, 3935), (2455, 3148)]