20780690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1049}}^1$

素因数の和:1346

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 22160110

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 283, 566, 1049, 1415, 1981, 2098, 2830, 3962, 5245, 7343, 9905, 10490, 14686, 19810, 36715, 73430, 296867, 593734, 1484335, 2078069, 2968670, 4156138, 10390345, 20780690]

約数ペア:

[(1, 20780690), (2, 10390345), (5, 4156138), (7, 2968670), (10, 2078069), (14, 1484335), (35, 593734), (70, 296867), (283, 73430), (566, 36715), (1049, 19810), (1415, 14686), (1981, 10490), (2098, 9905), (2830, 7343), (3962, 5245)]