4400980

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1117}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 9297288

約数和(自身を除く): 4896308

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1117, 1970, 2234, 3940, 4468, 5585, 11170, 22340, 220049, 440098, 880196, 1100245, 2200490, 4400980]

約数ペア:

[(1, 4400980), (2, 2200490), (4, 1100245), (5, 880196), (10, 440098), (20, 220049), (197, 22340), (394, 11170), (788, 5585), (985, 4468), (1117, 3940), (1970, 2234)]