257890236

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{320759}}^1$

素因数の和:320833

約数の個数: 24

約数和(自身を含む): 610727040

約数和(自身を除く): 352836804

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 320759, 641518, 962277, 1283036, 1924554, 3849108, 21490853, 42981706, 64472559, 85963412, 128945118, 257890236]

約数ペア:

[(1, 257890236), (2, 128945118), (3, 85963412), (4, 64472559), (6, 42981706), (12, 21490853), (67, 3849108), (134, 1924554), (201, 1283036), (268, 962277), (402, 641518), (804, 320759)]