209971165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 279002880

約数和(自身を除く): 69031715

約数列:

[1, 5, 17, 29, 85, 103, 145, 493, 515, 827, 1751, 2465, 2987, 4135, 8755, 14059, 14935, 23983, 50779, 70295, 85181, 119915, 253895, 407711, 425905, 1448077, 2038555, 2470249, 7240385, 12351245, 41994233, 209971165]

約数ペア:

[(1, 209971165), (5, 41994233), (17, 12351245), (29, 7240385), (85, 2470249), (103, 2038555), (145, 1448077), (493, 425905), (515, 407711), (827, 253895), (1751, 119915), (2465, 85181), (2987, 70295), (4135, 50779), (8755, 23983), (14059, 14935)]