19195420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12149}}^1$

素因数の和:12237

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 21628580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12149, 24298, 48596, 60745, 121490, 242980, 959771, 1919542, 3839084, 4798855, 9597710, 19195420]

約数ペア:

[(1, 19195420), (2, 9597710), (4, 4798855), (5, 3839084), (10, 1919542), (20, 959771), (79, 242980), (158, 121490), (316, 60745), (395, 48596), (790, 24298), (1580, 12149)]