393923978

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{2179}}^1$

素因数の和:2574

約数の個数: 32

約数和(自身を含む): 695856000

約数和(自身を除く): 301932022

約数列:

[1, 2, 7, 14, 37, 74, 259, 349, 518, 698, 2179, 2443, 4358, 4886, 12913, 15253, 25826, 30506, 80623, 90391, 161246, 180782, 564361, 760471, 1128722, 1520942, 5323297, 10646594, 28137427, 56274854, 196961989, 393923978]

約数ペア:

[(1, 393923978), (2, 196961989), (7, 56274854), (14, 28137427), (37, 10646594), (74, 5323297), (259, 1520942), (349, 1128722), (518, 760471), (698, 564361), (2179, 180782), (2443, 161246), (4358, 90391), (4886, 80623), (12913, 30506), (15253, 25826)]