258996868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{18379}}^1$

素因数の和:18667

約数の個数: 24

約数和(自身を含む): 489937280

約数和(自身を除く): 230940412

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 3523, 7046, 14092, 18379, 36758, 73516, 238927, 477854, 955708, 4980709, 9961418, 19922836, 64749217, 129498434, 258996868]

約数ペア:

[(1, 258996868), (2, 129498434), (4, 64749217), (13, 19922836), (26, 9961418), (52, 4980709), (271, 955708), (542, 477854), (1084, 238927), (3523, 73516), (7046, 36758), (14092, 18379)]