51296560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 137491200

約数和(自身を除く): 86194640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 659, 695, 973, 1112, 1318, 1390, 1946, 2224, 2636, 2780, 3295, 3892, 4613, 4865, 5272, 5560, 6590, 7784, 9226, 9730, 10544, 11120, 13180, 15568, 18452, 19460, 23065, 26360, 36904, 38920, 46130, 52720, 73808, 77840, 91601, 92260, 183202, 184520, 366404, 369040, 458005, 641207, 732808, 916010, 1282414, 1465616, 1832020, 2564828, 3206035, 3664040, 5129656, 6412070, 7328080, 10259312, 12824140, 25648280, 51296560]

約数ペア:

[(1, 51296560), (2, 25648280), (4, 12824140), (5, 10259312), (7, 7328080), (8, 6412070), (10, 5129656), (14, 3664040), (16, 3206035), (20, 2564828), (28, 1832020), (35, 1465616), (40, 1282414), (56, 916010), (70, 732808), (80, 641207), (112, 458005), (139, 369040), (140, 366404), (278, 184520), (280, 183202), (556, 92260), (560, 91601), (659, 77840), (695, 73808), (973, 52720), (1112, 46130), (1318, 38920), (1390, 36904), (1946, 26360), (2224, 23065), (2636, 19460), (2780, 18452), (3295, 15568), (3892, 13180), (4613, 11120), (4865, 10544), (5272, 9730), (5560, 9226), (6590, 7784)]