19181960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68507}}^1$

素因数の和:68525

約数の個数: 32

約数和(自身を含む): 49325760

約数和(自身を除く): 30143800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68507, 137014, 274028, 342535, 479549, 548056, 685070, 959098, 1370140, 1918196, 2397745, 2740280, 3836392, 4795490, 9590980, 19181960]

約数ペア:

[(1, 19181960), (2, 9590980), (4, 4795490), (5, 3836392), (7, 2740280), (8, 2397745), (10, 1918196), (14, 1370140), (20, 959098), (28, 685070), (35, 548056), (40, 479549), (56, 342535), (70, 274028), (140, 137014), (280, 68507)]