639829.0000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 22684032

約数和(自身を除く): 13308092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 347, 386, 694, 772, 965, 1351, 1388, 1735, 1930, 2429, 2702, 3470, 3860, 4858, 5404, 6755, 6940, 9716, 12145, 13510, 24290, 27020, 48580, 66971, 133942, 267884, 334855, 468797, 669710, 937594, 1339420, 1875188, 2343985, 4687970, 9375940]

約数ペア:

[(1, 9375940), (2, 4687970), (4, 2343985), (5, 1875188), (7, 1339420), (10, 937594), (14, 669710), (20, 468797), (28, 334855), (35, 267884), (70, 133942), (140, 66971), (193, 48580), (347, 27020), (386, 24290), (694, 13510), (772, 12145), (965, 9716), (1351, 6940), (1388, 6755), (1735, 5404), (1930, 4858), (2429, 3860), (2702, 3470)]