257130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{2857}}^1$

素因数の和:2870

約数の個数: 24

約数和(自身を含む): 668772

約数和(自身を除く): 411642

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 2857, 5714, 8571, 14285, 17142, 25713, 28570, 42855, 51426, 85710, 128565, 257130]

約数ペア:

[(1, 257130), (2, 128565), (3, 85710), (5, 51426), (6, 42855), (9, 28570), (10, 25713), (15, 17142), (18, 14285), (30, 8571), (45, 5714), (90, 2857)]