68665180

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{2789}}^1$

素因数の和:4029

約数の個数: 24

約数和(自身を含む): 144365760

約数和(自身を除く): 75700580

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 2789, 4924, 5578, 6155, 11156, 12310, 13945, 24620, 27890, 55780, 3433259, 6866518, 13733036, 17166295, 34332590, 68665180]

約数ペア:

[(1, 68665180), (2, 34332590), (4, 17166295), (5, 13733036), (10, 6866518), (20, 3433259), (1231, 55780), (2462, 27890), (2789, 24620), (4924, 13945), (5578, 12310), (6155, 11156)]