28380142

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{22777}}^1$

素因数の和:22875

約数の個数: 16

約数和(自身を含む): 49200480

約数和(自身を除く): 20820338

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 22777, 45554, 159439, 318878, 2027153, 4054306, 14190071, 28380142]

約数ペア:

[(1, 28380142), (2, 14190071), (7, 4054306), (14, 2027153), (89, 318878), (178, 159439), (623, 45554), (1246, 22777)]