20563490

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 38372400

約数和(自身を除く): 17808910

約数列:

[1, 2, 5, 10, 37, 74, 149, 185, 298, 370, 373, 745, 746, 1490, 1865, 3730, 5513, 11026, 13801, 27565, 27602, 55130, 55577, 69005, 111154, 138010, 277885, 555770, 2056349, 4112698, 10281745, 20563490]

約数ペア:

[(1, 20563490), (2, 10281745), (5, 4112698), (10, 2056349), (37, 555770), (74, 277885), (149, 138010), (185, 111154), (298, 69005), (370, 55577), (373, 55130), (745, 27602), (746, 27565), (1490, 13801), (1865, 11026), (3730, 5513)]