18217400

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1153}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 42928800

約数和(自身を除く): 24711400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1153, 1580, 1975, 2306, 3160, 3950, 4612, 5765, 7900, 9224, 11530, 15800, 23060, 28825, 46120, 57650, 91087, 115300, 182174, 230600, 364348, 455435, 728696, 910870, 1821740, 2277175, 3643480, 4554350, 9108700, 18217400]

約数ペア:

[(1, 18217400), (2, 9108700), (4, 4554350), (5, 3643480), (8, 2277175), (10, 1821740), (20, 910870), (25, 728696), (40, 455435), (50, 364348), (79, 230600), (100, 182174), (158, 115300), (200, 91087), (316, 57650), (395, 46120), (632, 28825), (790, 23060), (1153, 15800), (1580, 11530), (1975, 9224), (2306, 7900), (3160, 5765), (3950, 4612)]