2989910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{353}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 6779808

約数和(自身を除く): 3789898

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 353, 385, 605, 706, 770, 847, 1210, 1694, 1765, 2471, 3530, 3883, 4235, 4942, 7766, 8470, 12355, 19415, 24710, 27181, 38830, 42713, 54362, 85426, 135905, 213565, 271810, 298991, 427130, 597982, 1494955, 2989910]

約数ペア:

[(1, 2989910), (2, 1494955), (5, 597982), (7, 427130), (10, 298991), (11, 271810), (14, 213565), (22, 135905), (35, 85426), (55, 54362), (70, 42713), (77, 38830), (110, 27181), (121, 24710), (154, 19415), (242, 12355), (353, 8470), (385, 7766), (605, 4942), (706, 4235), (770, 3883), (847, 3530), (1210, 2471), (1694, 1765)]