128409904

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{60343}}^1$

素因数の和:60377

約数の個数: 40

約数和(自身を含む): 299306240

約数和(自身を除く): 170896336

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 60343, 120686, 241372, 422401, 482744, 844802, 965488, 1146517, 1689604, 2293034, 3379208, 4586068, 6758416, 8025619, 9172136, 16051238, 18344272, 32102476, 64204952, 128409904]

約数ペア:

[(1, 128409904), (2, 64204952), (4, 32102476), (7, 18344272), (8, 16051238), (14, 9172136), (16, 8025619), (19, 6758416), (28, 4586068), (38, 3379208), (56, 2293034), (76, 1689604), (112, 1146517), (133, 965488), (152, 844802), (266, 482744), (304, 422401), (532, 241372), (1064, 120686), (2128, 60343)]