205121708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^2\times {\mathrm{457}}^1$

素因数の和:674

約数の個数: 36

約数和(自身を含む): 396377016

約数和(自身を除く): 191255308

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 404, 457, 914, 1111, 1828, 2222, 4444, 5027, 10054, 10201, 20108, 20402, 40804, 46157, 92314, 112211, 184628, 224422, 448844, 507727, 1015454, 2030908, 4661857, 9323714, 18647428, 51280427, 102560854, 205121708]

約数ペア:

[(1, 205121708), (2, 102560854), (4, 51280427), (11, 18647428), (22, 9323714), (44, 4661857), (101, 2030908), (202, 1015454), (404, 507727), (457, 448844), (914, 224422), (1111, 184628), (1828, 112211), (2222, 92314), (4444, 46157), (5027, 40804), (10054, 20402), (10201, 20108)]