28287156940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1046897}}^1$

素因数の和:1047106

約数の個数: 48

約数和(自身を含む): 68240999232

約数和(自身を除く): 39953842292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1351, 1930, 2702, 3860, 5404, 6755, 13510, 27020, 1046897, 2093794, 4187588, 5234485, 7328279, 10468970, 14656558, 20937940, 29313116, 36641395, 73282790, 146565580, 202051121, 404102242, 808204484, 1010255605, 1414357847, 2020511210, 2828715694, 4041022420, 5657431388, 7071789235, 14143578470, 28287156940]

約数ペア:

[(1, 28287156940), (2, 14143578470), (4, 7071789235), (5, 5657431388), (7, 4041022420), (10, 2828715694), (14, 2020511210), (20, 1414357847), (28, 1010255605), (35, 808204484), (70, 404102242), (140, 202051121), (193, 146565580), (386, 73282790), (772, 36641395), (965, 29313116), (1351, 20937940), (1930, 14656558), (2702, 10468970), (3860, 7328279), (5404, 5234485), (6755, 4187588), (13510, 2093794), (27020, 1046897)]