138862780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{2239}}^1$

素因数の和:2698

約数の個数: 48

約数和(自身を含む): 334172160

約数和(自身を除く): 195309380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 1772, 2215, 2239, 3101, 4430, 4478, 6202, 8860, 8956, 11195, 12404, 15505, 15673, 22390, 31010, 31346, 44780, 62020, 62692, 78365, 156730, 313460, 991877, 1983754, 3967508, 4959385, 6943139, 9918770, 13886278, 19837540, 27772556, 34715695, 69431390, 138862780]

約数ペア:

[(1, 138862780), (2, 69431390), (4, 34715695), (5, 27772556), (7, 19837540), (10, 13886278), (14, 9918770), (20, 6943139), (28, 4959385), (35, 3967508), (70, 1983754), (140, 991877), (443, 313460), (886, 156730), (1772, 78365), (2215, 62692), (2239, 62020), (3101, 44780), (4430, 31346), (4478, 31010), (6202, 22390), (8860, 15673), (8956, 15505), (11195, 12404)]