201990020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{214883}}^1$

素因数の和:214939

約数の個数: 24

約数和(自身を含む): 433206144

約数和(自身を除く): 231216124

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 214883, 429766, 859532, 1074415, 2148830, 4297660, 10099501, 20199002, 40398004, 50497505, 100995010, 201990020]

約数ペア:

[(1, 201990020), (2, 100995010), (4, 50497505), (5, 40398004), (10, 20199002), (20, 10099501), (47, 4297660), (94, 2148830), (188, 1074415), (235, 859532), (470, 429766), (940, 214883)]