20353820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{367}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 24159460

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 118, 188, 235, 236, 295, 367, 470, 590, 734, 940, 1180, 1468, 1835, 2773, 3670, 5546, 7340, 11092, 13865, 17249, 21653, 27730, 34498, 43306, 55460, 68996, 86245, 86612, 108265, 172490, 216530, 344980, 433060, 1017691, 2035382, 4070764, 5088455, 10176910, 20353820]

約数ペア:

[(1, 20353820), (2, 10176910), (4, 5088455), (5, 4070764), (10, 2035382), (20, 1017691), (47, 433060), (59, 344980), (94, 216530), (118, 172490), (188, 108265), (235, 86612), (236, 86245), (295, 68996), (367, 55460), (470, 43306), (590, 34498), (734, 27730), (940, 21653), (1180, 17249), (1468, 13865), (1835, 11092), (2773, 7340), (3670, 5546)]