1289912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 2654400

約数和(自身を除く): 1364488

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 157, 158, 314, 316, 628, 632, 1027, 1256, 2041, 2054, 4082, 4108, 8164, 8216, 12403, 16328, 24806, 49612, 99224, 161239, 322478, 644956, 1289912]

約数ペア:

[(1, 1289912), (2, 644956), (4, 322478), (8, 161239), (13, 99224), (26, 49612), (52, 24806), (79, 16328), (104, 12403), (157, 8216), (158, 8164), (314, 4108), (316, 4082), (628, 2054), (632, 2041), (1027, 1256)]