131678512

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61879}}^1$

素因数の和:61913

約数の個数: 40

約数和(自身を含む): 306924800

約数和(自身を除く): 175246288

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 61879, 123758, 247516, 433153, 495032, 866306, 990064, 1175701, 1732612, 2351402, 3465224, 4702804, 6930448, 8229907, 9405608, 16459814, 18811216, 32919628, 65839256, 131678512]

約数ペア:

[(1, 131678512), (2, 65839256), (4, 32919628), (7, 18811216), (8, 16459814), (14, 9405608), (16, 8229907), (19, 6930448), (28, 4702804), (38, 3465224), (56, 2351402), (76, 1732612), (112, 1175701), (133, 990064), (152, 866306), (266, 495032), (304, 433153), (532, 247516), (1064, 123758), (2128, 61879)]