28380404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7687}}^1$

素因数の和:7775

約数の個数: 24

約数和(自身を含む): 54246528

約数和(自身を除く): 25866124

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 7687, 15374, 30748, 99931, 199862, 399724, 545777, 1091554, 2183108, 7095101, 14190202, 28380404]

約数ペア:

[(1, 28380404), (2, 14190202), (4, 7095101), (13, 2183108), (26, 1091554), (52, 545777), (71, 399724), (142, 199862), (284, 99931), (923, 30748), (1846, 15374), (3692, 7687)]