1289872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{4243}}^1$

素因数の和:4270

約数の個数: 20

約数和(自身を含む): 2631280

約数和(自身を除く): 1341408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 4243, 8486, 16972, 33944, 67888, 80617, 161234, 322468, 644936, 1289872]

約数ペア:

[(1, 1289872), (2, 644936), (4, 322468), (8, 161234), (16, 80617), (19, 67888), (38, 33944), (76, 16972), (152, 8486), (304, 4243)]