20154554140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{547}}^1\times {\mathrm{263183}}^1$

素因数の和:263746

約数の個数: 48

約数和(自身を含む): 48459543552

約数和(自身を除く): 28304989412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 547, 1094, 2188, 2735, 3829, 5470, 7658, 10940, 15316, 19145, 38290, 76580, 263183, 526366, 1052732, 1315915, 1842281, 2631830, 3684562, 5263660, 7369124, 9211405, 18422810, 36845620, 143961101, 287922202, 575844404, 719805505, 1007727707, 1439611010, 2015455414, 2879222020, 4030910828, 5038638535, 10077277070, 20154554140]

約数ペア:

[(1, 20154554140), (2, 10077277070), (4, 5038638535), (5, 4030910828), (7, 2879222020), (10, 2015455414), (14, 1439611010), (20, 1007727707), (28, 719805505), (35, 575844404), (70, 287922202), (140, 143961101), (547, 36845620), (1094, 18422810), (2188, 9211405), (2735, 7369124), (3829, 5263660), (5470, 3684562), (7658, 2631830), (10940, 1842281), (15316, 1315915), (19145, 1052732), (38290, 526366), (76580, 263183)]