67138040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18859}}^1$

素因数の和:18959

約数の個数: 32

約数和(自身を含む): 152766000

約数和(自身を除く): 85627960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 18859, 37718, 75436, 94295, 150872, 188590, 377180, 754360, 1678451, 3356902, 6713804, 8392255, 13427608, 16784510, 33569020, 67138040]

約数ペア:

[(1, 67138040), (2, 33569020), (4, 16784510), (5, 13427608), (8, 8392255), (10, 6713804), (20, 3356902), (40, 1678451), (89, 754360), (178, 377180), (356, 188590), (445, 150872), (712, 94295), (890, 75436), (1780, 37718), (3560, 18859)]