19403420

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{1031}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 40830048

約数和(自身を除く): 21426628

約数列:

[1, 2, 4, 5, 10, 20, 941, 1031, 1882, 2062, 3764, 4124, 4705, 5155, 9410, 10310, 18820, 20620, 970171, 1940342, 3880684, 4850855, 9701710, 19403420]

約数ペア:

[(1, 19403420), (2, 9701710), (4, 4850855), (5, 3880684), (10, 1940342), (20, 970171), (941, 20620), (1031, 18820), (1882, 10310), (2062, 9410), (3764, 5155), (4124, 4705)]