205966475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3389}}^1$

素因数の和:3440

約数の個数: 48

約数和(自身を含む): 317792160

約数和(自身を除く): 111825685

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 143, 187, 221, 275, 325, 425, 715, 935, 1105, 2431, 3389, 3575, 4675, 5525, 12155, 16945, 37279, 44057, 57613, 60775, 84725, 186395, 220285, 288065, 484627, 633743, 748969, 931975, 1101425, 1440325, 2423135, 3168715, 3744845, 8238659, 12115675, 15843575, 18724225, 41193295, 205966475]

約数ペア:

[(1, 205966475), (5, 41193295), (11, 18724225), (13, 15843575), (17, 12115675), (25, 8238659), (55, 3744845), (65, 3168715), (85, 2423135), (143, 1440325), (187, 1101425), (221, 931975), (275, 748969), (325, 633743), (425, 484627), (715, 288065), (935, 220285), (1105, 186395), (2431, 84725), (3389, 60775), (3575, 57613), (4675, 44057), (5525, 37279), (12155, 16945)]