18535720

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{193}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 48905460

約数和(自身を除く): 30369740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 193, 196, 245, 280, 343, 386, 392, 490, 686, 772, 965, 980, 1351, 1372, 1544, 1715, 1930, 1960, 2401, 2702, 2744, 3430, 3860, 4802, 5404, 6755, 6860, 7720, 9457, 9604, 10808, 12005, 13510, 13720, 18914, 19208, 24010, 27020, 37828, 47285, 48020, 54040, 66199, 75656, 94570, 96040, 132398, 189140, 264796, 330995, 378280, 463393, 529592, 661990, 926786, 1323980, 1853572, 2316965, 2647960, 3707144, 4633930, 9267860, 18535720]

約数ペア:

[(1, 18535720), (2, 9267860), (4, 4633930), (5, 3707144), (7, 2647960), (8, 2316965), (10, 1853572), (14, 1323980), (20, 926786), (28, 661990), (35, 529592), (40, 463393), (49, 378280), (56, 330995), (70, 264796), (98, 189140), (140, 132398), (193, 96040), (196, 94570), (245, 75656), (280, 66199), (343, 54040), (386, 48020), (392, 47285), (490, 37828), (686, 27020), (772, 24010), (965, 19208), (980, 18914), (1351, 13720), (1372, 13510), (1544, 12005), (1715, 10808), (1930, 9604), (1960, 9457), (2401, 7720), (2702, 6860), (2744, 6755), (3430, 5404), (3860, 4802)]