81340490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{15091}}^1$

素因数の和:15123

約数の個数: 48

約数和(自身を含む): 185812704

約数和(自身を除く): 104472214

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5390, 15091, 30182, 75455, 105637, 150910, 166001, 211274, 332002, 528185, 739459, 830005, 1056370, 1162007, 1478918, 1660010, 2324014, 3697295, 5810035, 7394590, 8134049, 11620070, 16268098, 40670245, 81340490]

約数ペア:

[(1, 81340490), (2, 40670245), (5, 16268098), (7, 11620070), (10, 8134049), (11, 7394590), (14, 5810035), (22, 3697295), (35, 2324014), (49, 1660010), (55, 1478918), (70, 1162007), (77, 1056370), (98, 830005), (110, 739459), (154, 528185), (245, 332002), (385, 211274), (490, 166001), (539, 150910), (770, 105637), (1078, 75455), (2695, 30182), (5390, 15091)]