19267180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 22665620

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 103, 188, 199, 206, 235, 398, 412, 470, 515, 796, 940, 995, 1030, 1990, 2060, 3980, 4841, 9353, 9682, 18706, 19364, 20497, 24205, 37412, 40994, 46765, 48410, 81988, 93530, 96820, 102485, 187060, 204970, 409940, 963359, 1926718, 3853436, 4816795, 9633590, 19267180]

約数ペア:

[(1, 19267180), (2, 9633590), (4, 4816795), (5, 3853436), (10, 1926718), (20, 963359), (47, 409940), (94, 204970), (103, 187060), (188, 102485), (199, 96820), (206, 93530), (235, 81988), (398, 48410), (412, 46765), (470, 40994), (515, 37412), (796, 24205), (940, 20497), (995, 19364), (1030, 18706), (1990, 9682), (2060, 9353), (3980, 4841)]