20000848

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4153}}^1$

素因数の和:4211

約数の個数: 40

約数和(自身を含む): 45328448

約数和(自身を除く): 25327600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4153, 4816, 8306, 16612, 29071, 33224, 58142, 66448, 116284, 178579, 232568, 357158, 465136, 714316, 1250053, 1428632, 2500106, 2857264, 5000212, 10000424, 20000848]

約数ペア:

[(1, 20000848), (2, 10000424), (4, 5000212), (7, 2857264), (8, 2500106), (14, 1428632), (16, 1250053), (28, 714316), (43, 465136), (56, 357158), (86, 232568), (112, 178579), (172, 116284), (301, 66448), (344, 58142), (602, 33224), (688, 29071), (1204, 16612), (2408, 8306), (4153, 4816)]