1388794040

素因数分解:

$2^3\times 5^1\times {\mathrm{34719851}}^1$

素因数の和:34719862

約数の個数: 16

約数和(自身を含む): 3124786680

約数和(自身を除く): 1735992640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 34719851, 69439702, 138879404, 173599255, 277758808, 347198510, 694397020, 1388794040]

約数ペア:

[(1, 1388794040), (2, 694397020), (4, 347198510), (5, 277758808), (8, 173599255), (10, 138879404), (20, 69439702), (40, 34719851)]