19908260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21179}}^1$

素因数の和:21235

約数の個数: 24

約数和(自身を含む): 42698880

約数和(自身を除く): 22790620

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21179, 42358, 84716, 105895, 211790, 423580, 995413, 1990826, 3981652, 4977065, 9954130, 19908260]

約数ペア:

[(1, 19908260), (2, 9954130), (4, 4977065), (5, 3981652), (10, 1990826), (20, 995413), (47, 423580), (94, 211790), (188, 105895), (235, 84716), (470, 42358), (940, 21179)]