19215940

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2753}}^1$

素因数の和:3111

約数の個数: 24

約数和(自身を含む): 40483800

約数和(自身を除く): 21267860

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 2753, 3490, 5506, 6980, 11012, 13765, 27530, 55060, 960797, 1921594, 3843188, 4803985, 9607970, 19215940]

約数ペア:

[(1, 19215940), (2, 9607970), (4, 4803985), (5, 3843188), (10, 1921594), (20, 960797), (349, 55060), (698, 27530), (1396, 13765), (1745, 11012), (2753, 6980), (3490, 5506)]