2647960

素因数分解:

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

素因数の和:225

約数の個数: 64

約数和(自身を含む): 6984000

約数和(自身を除く): 4336040

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, 2702, 2744, 3430, 3860, 5404, 6755, 6860, 7720, 9457, 10808, 13510, 13720, 18914, 27020, 37828, 47285, 54040, 66199, 75656, 94570, 132398, 189140, 264796, 330995, 378280, 529592, 661990, 1323980, 2647960]

約数ペア:

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