128223128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{3461}}^1$

素因数の和:3899

約数の個数: 32

約数和(自身を含む): 262973520

約数和(自身を除く): 134750392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 421, 842, 1684, 3368, 3461, 4631, 6922, 9262, 13844, 18524, 27688, 37048, 38071, 76142, 152284, 304568, 1457081, 2914162, 5828324, 11656648, 16027891, 32055782, 64111564, 128223128]

約数ペア:

[(1, 128223128), (2, 64111564), (4, 32055782), (8, 16027891), (11, 11656648), (22, 5828324), (44, 2914162), (88, 1457081), (421, 304568), (842, 152284), (1684, 76142), (3368, 38071), (3461, 37048), (4631, 27688), (6922, 18524), (9262, 13844)]