1808166220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{163487}}^1$

素因数の和:163582

約数の個数: 48

約数和(自身を含む): 4394557440

約数和(自身を除く): 2586391220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 163487, 326974, 653948, 817435, 1144409, 1634870, 2288818, 3269740, 4577636, 5722045, 11444090, 12915473, 22888180, 25830946, 51661892, 64577365, 90408311, 129154730, 180816622, 258309460, 361633244, 452041555, 904083110, 1808166220]

約数ペア:

[(1, 1808166220), (2, 904083110), (4, 452041555), (5, 361633244), (7, 258309460), (10, 180816622), (14, 129154730), (20, 90408311), (28, 64577365), (35, 51661892), (70, 25830946), (79, 22888180), (140, 12915473), (158, 11444090), (316, 5722045), (395, 4577636), (553, 3269740), (790, 2288818), (1106, 1634870), (1580, 1144409), (2212, 817435), (2765, 653948), (5530, 326974), (11060, 163487)]