138974128

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{79687}}^1$

素因数の和:79804

約数の個数: 20

約数和(自身を含む): 271736080

約数和(自身を除く): 132761952

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 79687, 159374, 318748, 637496, 1274992, 8685883, 17371766, 34743532, 69487064, 138974128]

約数ペア:

[(1, 138974128), (2, 69487064), (4, 34743532), (8, 17371766), (16, 8685883), (109, 1274992), (218, 637496), (436, 318748), (872, 159374), (1744, 79687)]