66497240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18679}}^1$

素因数の和:18779

約数の個数: 32

約数和(自身を含む): 151308000

約数和(自身を除く): 84810760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 18679, 37358, 74716, 93395, 149432, 186790, 373580, 747160, 1662431, 3324862, 6649724, 8312155, 13299448, 16624310, 33248620, 66497240]

約数ペア:

[(1, 66497240), (2, 33248620), (4, 16624310), (5, 13299448), (8, 8312155), (10, 6649724), (20, 3324862), (40, 1662431), (89, 747160), (178, 373580), (356, 186790), (445, 149432), (712, 93395), (890, 74716), (1780, 37358), (3560, 18679)]