66072940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{76829}}^1$

素因数の和:76881

約数の個数: 24

約数和(自身を含む): 141981840

約数和(自身を除く): 75908900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 76829, 153658, 307316, 384145, 768290, 1536580, 3303647, 6607294, 13214588, 16518235, 33036470, 66072940]

約数ペア:

[(1, 66072940), (2, 33036470), (4, 16518235), (5, 13214588), (10, 6607294), (20, 3303647), (43, 1536580), (86, 768290), (172, 384145), (215, 307316), (430, 153658), (860, 76829)]