208245590

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 441936000

約数和(自身を除く): 233690410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 109, 218, 245, 343, 490, 545, 557, 686, 763, 1090, 1114, 1526, 1715, 2785, 3430, 3815, 3899, 5341, 5570, 7630, 7798, 10682, 19495, 26705, 27293, 37387, 38990, 53410, 54586, 60713, 74774, 121426, 136465, 186935, 191051, 272930, 303565, 373870, 382102, 424991, 607130, 849982, 955255, 1910510, 2124955, 2974937, 4249910, 5949874, 14874685, 20824559, 29749370, 41649118, 104122795, 208245590]

約数ペア:

[(1, 208245590), (2, 104122795), (5, 41649118), (7, 29749370), (10, 20824559), (14, 14874685), (35, 5949874), (49, 4249910), (70, 2974937), (98, 2124955), (109, 1910510), (218, 955255), (245, 849982), (343, 607130), (490, 424991), (545, 382102), (557, 373870), (686, 303565), (763, 272930), (1090, 191051), (1114, 186935), (1526, 136465), (1715, 121426), (2785, 74774), (3430, 60713), (3815, 54586), (3899, 53410), (5341, 38990), (5570, 37387), (7630, 27293), (7798, 26705), (10682, 19495)]