19381220

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4021}}^1$

素因数の和:4271

約数の個数: 24

約数和(自身を含む): 40879608

約数和(自身を除く): 21498388

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4021, 4820, 8042, 16084, 20105, 40210, 80420, 969061, 1938122, 3876244, 4845305, 9690610, 19381220]

約数ペア:

[(1, 19381220), (2, 9690610), (4, 4845305), (5, 3876244), (10, 1938122), (20, 969061), (241, 80420), (482, 40210), (964, 20105), (1205, 16084), (2410, 8042), (4021, 4820)]