19742590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1001

約数の個数: 48

約数和(自身を含む): 42345072

約数和(自身を除く): 22602482

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 937, 1505, 1874, 2107, 3010, 4214, 4685, 6559, 9370, 10535, 13118, 21070, 32795, 40291, 45913, 65590, 80582, 91826, 201455, 229565, 282037, 402910, 459130, 564074, 1410185, 1974259, 2820370, 3948518, 9871295, 19742590]

約数ペア:

[(1, 19742590), (2, 9871295), (5, 3948518), (7, 2820370), (10, 1974259), (14, 1410185), (35, 564074), (43, 459130), (49, 402910), (70, 282037), (86, 229565), (98, 201455), (215, 91826), (245, 80582), (301, 65590), (430, 45913), (490, 40291), (602, 32795), (937, 21070), (1505, 13118), (1874, 10535), (2107, 9370), (3010, 6559), (4214, 4685)]