140644040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{57641}}^1$

素因数の和:57713

約数の個数: 32

約数和(自身を含む): 321642360

約数和(自身を除く): 180998320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 57641, 115282, 230564, 288205, 461128, 576410, 1152820, 2305640, 3516101, 7032202, 14064404, 17580505, 28128808, 35161010, 70322020, 140644040]

約数ペア:

[(1, 140644040), (2, 70322020), (4, 35161010), (5, 28128808), (8, 17580505), (10, 14064404), (20, 7032202), (40, 3516101), (61, 2305640), (122, 1152820), (244, 576410), (305, 461128), (488, 288205), (610, 230564), (1220, 115282), (2440, 57641)]