68981835

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20809}}^1$

素因数の和:20847

約数の個数: 32

約数和(自身を含む): 125858880

約数和(自身を除く): 56877045

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 20809, 62427, 104045, 270517, 312135, 353753, 811551, 1061259, 1352585, 1768765, 4057755, 4598789, 5306295, 13796367, 22993945, 68981835]

約数ペア:

[(1, 68981835), (3, 22993945), (5, 13796367), (13, 5306295), (15, 4598789), (17, 4057755), (39, 1768765), (51, 1352585), (65, 1061259), (85, 811551), (195, 353753), (221, 312135), (255, 270517), (663, 104045), (1105, 62427), (3315, 20809)]