256620140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1833001}}^1$

素因数の和:1833017

約数の個数: 24

約数和(自身を含む): 615888672

約数和(自身を除く): 359268532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1833001, 3666002, 7332004, 9165005, 12831007, 18330010, 25662014, 36660020, 51324028, 64155035, 128310070, 256620140]

約数ペア:

[(1, 256620140), (2, 128310070), (4, 64155035), (5, 51324028), (7, 36660020), (10, 25662014), (14, 18330010), (20, 12831007), (28, 9165005), (35, 7332004), (70, 3666002), (140, 1833001)]