19376920

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2459}}^1$

素因数の和:2667

約数の個数: 32

約数和(自身を含む): 43837200

約数和(自身を除く): 24460280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2459, 3940, 4918, 7880, 9836, 12295, 19672, 24590, 49180, 98360, 484423, 968846, 1937692, 2422115, 3875384, 4844230, 9688460, 19376920]

約数ペア:

[(1, 19376920), (2, 9688460), (4, 4844230), (5, 3875384), (8, 2422115), (10, 1937692), (20, 968846), (40, 484423), (197, 98360), (394, 49180), (788, 24590), (985, 19672), (1576, 12295), (1970, 9836), (2459, 7880), (3940, 4918)]