127998512

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{769}}^1$

素因数の和:981

約数の個数: 40

約数和(自身を含む): 253212960

約数和(自身を除く): 125214448

約数列:

[1, 2, 4, 8, 16, 101, 103, 202, 206, 404, 412, 769, 808, 824, 1538, 1616, 1648, 3076, 6152, 10403, 12304, 20806, 41612, 77669, 79207, 83224, 155338, 158414, 166448, 310676, 316828, 621352, 633656, 1242704, 1267312, 7999907, 15999814, 31999628, 63999256, 127998512]

約数ペア:

[(1, 127998512), (2, 63999256), (4, 31999628), (8, 15999814), (16, 7999907), (101, 1267312), (103, 1242704), (202, 633656), (206, 621352), (404, 316828), (412, 310676), (769, 166448), (808, 158414), (824, 155338), (1538, 83224), (1616, 79207), (1648, 77669), (3076, 41612), (6152, 20806), (10403, 12304)]