256587765

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{349099}}^1$

素因数の和:349121

約数の個数: 24

約数和(自身を含む): 477568800

約数和(自身を除く): 220981035

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 349099, 1047297, 1745495, 2443693, 5236485, 7331079, 12218465, 17105851, 36655395, 51317553, 85529255, 256587765]

約数ペア:

[(1, 256587765), (3, 85529255), (5, 51317553), (7, 36655395), (15, 17105851), (21, 12218465), (35, 7331079), (49, 5236485), (105, 2443693), (147, 1745495), (245, 1047297), (735, 349099)]