278320382

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{31139}}^1$

素因数の和:31291

約数の個数: 16

約数和(自身を含む): 431600400

約数和(自身を除く): 153280018

約数列:

[1, 2, 41, 82, 109, 218, 4469, 8938, 31139, 62278, 1276699, 2553398, 3394151, 6788302, 139160191, 278320382]

約数ペア:

[(1, 278320382), (2, 139160191), (41, 6788302), (82, 3394151), (109, 2553398), (218, 1276699), (4469, 62278), (8938, 31139)]